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23078328 = 23371310567
BaseRepresentation
bin101100000001…
…0010110111000
31121102111111220
41120002112320
521402001303
62142352040
7400106520
oct130022670
947374456
1023078328
11120330a9
12788b620
134a20620
1430ca680
15205d053
hex16025b8

23078328 has 64 divisors (see below), whose sum is σ = 71016960. Its totient is φ = 6086016.

The previous prime is 23078327. The next prime is 23078347. The reversal of 23078328 is 82387032.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23078327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3100 + ... + 7467.

It is an arithmetic number, because the mean of its divisors is an integer number (1109640).

Almost surely, 223078328 is an apocalyptic number.

23078328 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

23078328 is an abundant number, since it is smaller than the sum of its proper divisors (47938632).

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

23078328 is a wasteful number, since it uses less digits than its factorization.

23078328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10596 (or 10592 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 23078328 is about 4803.9908409571. The cubic root of 23078328 is about 284.7091646836.

The spelling of 23078328 in words is "twenty-three million, seventy-eight thousand, three hundred twenty-eight".

Divisors: 1 2 3 4 6 7 8 12 13 14 21 24 26 28 39 42 52 56 78 84 91 104 156 168 182 273 312 364 546 728 1092 2184 10567 21134 31701 42268 63402 73969 84536 126804 137371 147938 221907 253608 274742 295876 412113 443814 549484 591752 824226 887628 961597 1098968 1648452 1775256 1923194 2884791 3296904 3846388 5769582 7692776 11539164 23078328