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23128104 = 2337431297
BaseRepresentation
bin101100000111…
…0100000101000
31121112000210110
41120032200220
521410044404
62143414320
7400404606
oct130164050
947460713
1023128104
111206753a
1278b43a0
134a3a18c
143100876
15206cb89
hex160e828

23128104 has 32 divisors (see below), whose sum is σ = 57942720. Its totient is φ = 7693056.

The previous prime is 23128103. The next prime is 23128123. The reversal of 23128104 is 40182132.

It is not an unprimeable number, because it can be changed into a prime (23128103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17184 + ... + 18480.

It is an arithmetic number, because the mean of its divisors is an integer number (1810710).

Almost surely, 223128104 is an apocalyptic number.

23128104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

23128104 is an abundant number, since it is smaller than the sum of its proper divisors (34814616).

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

23128104 is a wasteful number, since it uses less digits than its factorization.

23128104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2049 (or 2045 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 23128104 is about 4809.1687431405. The cubic root of 23128104 is about 284.9137073313.

It can be divided in two parts, 23128 and 104, that added together give a palindrome (23232).

The spelling of 23128104 in words is "twenty-three million, one hundred twenty-eight thousand, one hundred four".

Divisors: 1 2 3 4 6 8 12 24 743 1297 1486 2229 2594 2972 3891 4458 5188 5944 7782 8916 10376 15564 17832 31128 963671 1927342 2891013 3854684 5782026 7709368 11564052 23128104