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23134857 = 34723491
BaseRepresentation
bin101100001000…
…0001010001001
31121112101001120
41120100022021
521410303412
62143505453
7400433364
oct130201211
947471046
1023134857
1112071619
1278b8289
134a40285
1431030db
15206eb8c
hex1610289

23134857 has 12 divisors (see below), whose sum is σ = 31525776. Its totient is φ = 15090760.

The previous prime is 23134847. The next prime is 23134873. The reversal of 23134857 is 75843132.

It is not a de Polignac number, because 23134857 - 27 = 23134729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23134847) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4882 + ... + 8372.

It is an arithmetic number, because the mean of its divisors is an integer number (2627148).

Almost surely, 223134857 is an apocalyptic number.

It is an amenable number.

23134857 is a deficient number, since it is larger than the sum of its proper divisors (8390919).

23134857 is an equidigital number, since it uses as much as digits as its factorization.

23134857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3588 (or 3541 counting only the distinct ones).

The product of its digits is 20160, while the sum is 33.

The square root of 23134857 is about 4809.8707882853. The cubic root of 23134857 is about 284.9414345650.

Adding to 23134857 its reverse (75843132), we get a palindrome (98977989).

The spelling of 23134857 in words is "twenty-three million, one hundred thirty-four thousand, eight hundred fifty-seven".

Divisors: 1 3 47 141 2209 3491 6627 10473 164077 492231 7711619 23134857