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23057657 = 714532267
BaseRepresentation
bin101011111110…
…1010011111001
31121101110011022
41113331103321
521400321112
62142112225
7366662330
oct127752371
947343138
1023057657
1112019617
12787b675
134a140ac
1430c2d17
152056d72
hex15fd4f9

23057657 has 8 divisors (see below), whose sum is σ = 26381376. Its totient is φ = 19741392.

The previous prime is 23057641. The next prime is 23057669. The reversal of 23057657 is 75675032.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23057657 - 24 = 23057641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23057687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9038 + ... + 11304.

It is an arithmetic number, because the mean of its divisors is an integer number (3297672).

Almost surely, 223057657 is an apocalyptic number.

It is an amenable number.

23057657 is a deficient number, since it is larger than the sum of its proper divisors (3323719).

23057657 is a wasteful number, since it uses less digits than its factorization.

23057657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3727.

The product of its (nonzero) digits is 44100, while the sum is 35.

The square root of 23057657 is about 4801.8389185811. The cubic root of 23057657 is about 284.6241356883.

The spelling of 23057657 in words is "twenty-three million, fifty-seven thousand, six hundred fifty-seven".

Divisors: 1 7 1453 2267 10171 15869 3293951 23057657