1. Numbers
  2. Compare 21009 vs 21013

Compare 21009 vs 21013

Property2100921013
Typecomposite numberprime
Unique factors31
Total factors31
Prime factorization31 × 471 × 1491210131
Prime factorization3 × 47 × 14921013
Divisors count82
Divisors1, 3, 47, 141, 149, 447, 7003, 210091, 21013
Number of properties013
Additive primes 1095th
Centered square primes 37th
Cousin primes (1st member) 358th
Harmonic primes 868th
Lucky primes 384th
Primes 2363rd
Prime quadruplets (2nd member) 20th
Prime quintuplet 2s (2nd member) 7th
Prime triplets (1st member) 176th
Prime triplets (2nd member) 175th
Pythagorean primes 1174th
Sexy primes (1st member) 715th
Twin primes (2nd member) 358th
Roman numberals  
Base 210100100001000121010010000101012
Base 31001211010310012110213
Base 4110201014110201114
Base 51133014511330235
Base 624113362411416
Base 711515271151567
Base 8510218510258
Base 9317339317379
Base 1021009102101310
Base 111486a111487311
Base 12101a912101b112
Base 13974113974513
Base 14792914792d14
Base 15635915635d15
Base 16521116521516
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