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23137005 = 353149757
BaseRepresentation
bin101100001000…
…0101011101101
31121112111000010
41120100223231
521410341010
62143523433
7400442553
oct130205355
947474003
1023137005
11120731a1
1278b9579
134a41248
143103bd3
152070620
hex1610aed

23137005 has 16 divisors (see below), whose sum is σ = 38214144. Its totient is φ = 11941440.

The previous prime is 23137001. The next prime is 23137031. The reversal of 23137005 is 50073132.

It is a happy number.

It is not a de Polignac number, because 23137005 - 22 = 23137001 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23137001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24414 + ... + 25343.

It is an arithmetic number, because the mean of its divisors is an integer number (2388384).

Almost surely, 223137005 is an apocalyptic number.

It is an amenable number.

23137005 is a deficient number, since it is larger than the sum of its proper divisors (15077139).

23137005 is a wasteful number, since it uses less digits than its factorization.

23137005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49796.

The product of its (nonzero) digits is 630, while the sum is 21.

The square root of 23137005 is about 4810.0940739241. The cubic root of 23137005 is about 284.9502529361.

The spelling of 23137005 in words is "twenty-three million, one hundred thirty-seven thousand, five".

Divisors: 1 3 5 15 31 93 155 465 49757 149271 248785 746355 1542467 4627401 7712335 23137005