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23153128 = 2310132857
BaseRepresentation
bin101100001010…
…0100111101000
31121120022010021
41120110213220
521411400003
62144130224
7400540555
oct130244750
947508107
1023153128
1112084319
127906974
134a4869b
143109a2c
1520752bd
hex16149e8

23153128 has 16 divisors (see below), whose sum is σ = 43470180. Its totient is φ = 11561088.

The previous prime is 23153089. The next prime is 23153129. The reversal of 23153128 is 82135132.

It can be written as a sum of positive squares in 2 ways, for example, as 21362884 + 1790244 = 4622^2 + 1338^2 .

It is not an unprimeable number, because it can be changed into a prime (23153129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6676 + ... + 9532.

Almost surely, 223153128 is an apocalyptic number.

It is an amenable number.

23153128 is a deficient number, since it is larger than the sum of its proper divisors (20317052).

23153128 is a wasteful number, since it uses less digits than its factorization.

23153128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3876 (or 3872 counting only the distinct ones).

The product of its digits is 1440, while the sum is 25.

The square root of 23153128 is about 4811.7697368016. The cubic root of 23153128 is about 285.0164266719.

The spelling of 23153128 in words is "twenty-three million, one hundred fifty-three thousand, one hundred twenty-eight".

Divisors: 1 2 4 8 1013 2026 2857 4052 5714 8104 11428 22856 2894141 5788282 11576564 23153128