Number 20989

20989 is semiprime.

20989 prime factorization is 139¹ × 151¹

20989 prime factorization is 139 × 151

Divisors (4): 1, 139, 151, 20989

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Properties#

20989 is 5324th semiprime

External#

Neighbours#

20977₁	20978	20979	20980	20981₅
20982	20983₄	20984	20985	20986
20987₁	20988	20989₁	20990	20991₁
20992	20993₁	20994	20995	20996
20997	20998₁	20999	21000	21001₅

Compare with#

20977₁	20978	20979	20980	20981₅
20982	20983₄	20984	20985	20986
20987₁	20988	20989₁	20990	20991₁
20992	20993₁	20994	20995	20996
20997	20998₁	20999	21000	21001₅

Different Representations#

20989 in base 2 is 101000111111101₂
20989 in base 3 is 1001210101₃
20989 in base 4 is 11013331₄
20989 in base 5 is 1132424₅
20989 in base 6 is 241101₆
20989 in base 7 is 115123₇
20989 in base 8 is 50775₈
20989 in base 9 is 31711₉
20989 in base 10 is 20989₁₀
20989 in base 11 is 14851₁₁
20989 in base 12 is 10191₁₂
20989 in base 13 is 9727₁₃
20989 in base 14 is 7913₁₄
20989 in base 15 is 6344₁₅
20989 in base 16 is 51fd₁₆

Belongs Into#

20989 belongs into first 1000 semiprimes.

As Timestamp#

0 + 1 * 20989: Convert timestamp 20989 to date is 1970-01-01 05:49:49
0 + 1000 * 20989: Convert timestamp 20989000 to date is 1970-08-31 22:16:40
1300000000 + 1000 * 20989: Convert timestamp 1320989000 to date is 2011-11-11 05:23:20
1400000000 + 1000 * 20989: Convert timestamp 1420989000 to date is 2015-01-11 15:10:00
1500000000 + 1000 * 20989: Convert timestamp 1520989000 to date is 2018-03-14 00:56:40
1600000000 + 1000 * 20989: Convert timestamp 1620989000 to date is 2021-05-14 10:43:20
1700000000 + 1000 * 20989: Convert timestamp 1720989000 to date is 2024-07-14 20:30:00

You May Also Ask#

Smaller than 20989#

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