1. Numbers
  2. Compare 31387 vs 31390

Compare 31387 vs 31390

Property3138731390
Typeprimecomposite number
Unique factors14
Total factors14
Prime factorization31387121 × 51 × 431 × 731
Prime factorization313872 × 5 × 43 × 73
Divisors count216
Divisors1, 313871, 2, 5, 10, 43, 73, 86, 146, 215, 365, 430, 730, 3139, 6278, 15695, 31390
Number of properties80
Chen primes1613th 
Cousin primes (1st member)484th 
Isolated primes2415th 
Lucky primes525th 
Primes3382nd 
Prime triplets (1st member)232nd 
Sexy primes (1st member)990th 
Ulam primes258th 
Roman numberals  
Base 211110101001101121111010100111102
Base 31121001111311210011213
Base 4132221234132221324
Base 52001022520010305
Base 640115164011546
Base 716033671603427
Base 8752338752368
Base 9470449470479
Base 1031387103139010
Base 1121644112164711
Base 12161b712161ba12
Base 1311395131139813
Base 14b61d14b62214
Base 15947715947a15
Base 167a9b167a9e16
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