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23153984 = 26751683
BaseRepresentation
bin101100001010…
…0110101000000
31121120100021222
41120110311000
521411411414
62144134212
7400543220
oct130246500
947510258
1023153984
1112084a27
127907368
134a48ba9
14310a080
15207568e
hex1614d40

23153984 has 28 divisors (see below), whose sum is σ = 52510944. Its totient is φ = 9922944.

The previous prime is 23153981. The next prime is 23154007. The reversal of 23153984 is 48935132.

It is a tau number, because it is divible by the number of its divisors (28).

It is a super-2 number, since 2×231539842 = 1072213950144512, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23153981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25394 + ... + 26289.

Almost surely, 223153984 is an apocalyptic number.

It is an amenable number.

23153984 is an abundant number, since it is smaller than the sum of its proper divisors (29356960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23153984 is an equidigital number, since it uses as much as digits as its factorization.

23153984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51702 (or 51692 counting only the distinct ones).

The product of its digits is 25920, while the sum is 35.

The square root of 23153984 is about 4811.8586845418. The cubic root of 23153984 is about 285.0199390995.

The spelling of 23153984 in words is "twenty-three million, one hundred fifty-three thousand, nine hundred eighty-four".

Divisors: 1 2 4 7 8 14 16 28 32 56 64 112 224 448 51683 103366 206732 361781 413464 723562 826928 1447124 1653856 2894248 3307712 5788496 11576992 23153984