1. Numbers
  2. Compare 20747 vs 21991

Compare 20747 vs 21991

Property2074721991
Typeprimeprime
Unique factors11
Total factors11
Prime factorization207471219911
Prime factorization2074721991
Divisors count22
Divisors1, 207471, 21991
Number of properties95
Chen primes1149th1208th
Cousin primes (2nd member)354th 
Harmonic primes854th 
Isolated primes 1720th
Primes2336th2463rd
Prime triplets (1st member)173rd 
Prime triplets (2nd member)172nd 
Sexy primes (1st member)710th742nd
Sexy prime triplets (1st member)195th202nd
Twin primes (1st member)353rd 
Roman numberals  
Base 210100010000101121010101111001112
Base 31001110102310100111113
Base 4110100234111132134
Base 51130442512004315
Base 624001562454516
Base 711432671210547
Base 8504138527478
Base 9314129331449
Base 1020747102199110
Base 1114651111558211
Base 121000b121088712
Base 13959c13a01813
Base 1477bd14802b14
Base 1562321567b115
Base 16510b1655e716
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