1. Numbers
  2. Compare 21994 vs 21997

Compare 21994 vs 21997

Property2199421997
Typecomposite numberprime
Unique factors31
Total factors31
Prime factorization21 × 71 × 15711219971
Prime factorization2 × 7 × 157121997
Divisors count82
Divisors1, 2, 7, 14, 1571, 3142, 10997, 219941, 21997
Number of properties08
Chen primes 1209th
Isolated primes 1721st
Left-truncatable primes 173rd
Primes 2464th
Pythagorean primes 1223rd
Sexy primes (1st member) 743rd
Sexy primes (2nd member) 742nd
Sexy prime triplets (2nd member) 202nd
Roman numberals  
Base 210101011110101021010101111011012
Base 31010011121310100112013
Base 4111132224111132314
Base 51200434512004425
Base 624545462455016
Base 712106071210637
Base 8527528527558
Base 9331479331519
Base 1021994102199710
Base 1115585111558811
Base 121088a121089112
Base 13a01b13a02113
Base 14803014803314
Base 1567b41567b715
Base 1655ea1655ed16
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