1. Numbers
  2. Compare 19801 vs 21013

Compare 19801 vs 21013

Property1980121013
Typeprimeprime
Unique factors11
Total factors11
Prime factorization198011210131
Prime factorization1980121013
Divisors count22
Divisors1, 198011, 21013
Number of properties613
Additive primes1042nd1095th
Centered square primes35th37th
Cousin primes (1st member) 358th
Emirps623rd 
Harmonic primes 868th
Isolated primes1566th 
Lucky primes 384th
Primes2241st2363rd
Prime quadruplets (2nd member) 20th
Prime quintuplet 2s (2nd member) 7th
Prime triplets (1st member) 176th
Prime triplets (2nd member) 175th
Pythagorean primes1113th1174th
Sexy primes (1st member) 715th
Twin primes (2nd member) 358th
Roman numberals  
Base 210011010101100121010010000101012
Base 31000011101310012110213
Base 4103111214110201114
Base 51113201511330235
Base 623140162411416
Base 711150571151567
Base 8465318510258
Base 9301419317379
Base 1019801102101310
Base 1113971111487311
Base 12b56112101b112
Base 13902213974513
Base 14730514792d14
Base 155d0115635d15
Base 164d5916521516
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