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23136672 = 2531318539
BaseRepresentation
bin101100001000…
…0100110100000
31121112110112210
41120100212200
521410333142
62143522120
7400441566
oct130204640
947473483
1023136672
1112072a19
1278b9340
134a41050
143103a36
15207049c
hex16109a0

23136672 has 48 divisors (see below), whose sum is σ = 65409120. Its totient is φ = 7118592.

The previous prime is 23136649. The next prime is 23136719. The reversal of 23136672 is 27663132.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8022 + ... + 10517.

It is an arithmetic number, because the mean of its divisors is an integer number (1362690).

Almost surely, 223136672 is an apocalyptic number.

It is an amenable number.

23136672 is an abundant number, since it is smaller than the sum of its proper divisors (42272448).

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

23136672 is a wasteful number, since it uses less digits than its factorization.

23136672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18565 (or 18557 counting only the distinct ones).

The product of its digits is 9072, while the sum is 30.

The square root of 23136672 is about 4810.0594590920. The cubic root of 23136672 is about 284.9488858780.

The spelling of 23136672 in words is "twenty-three million, one hundred thirty-six thousand, six hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 32 39 48 52 78 96 104 156 208 312 416 624 1248 18539 37078 55617 74156 111234 148312 222468 241007 296624 444936 482014 593248 723021 889872 964028 1446042 1779744 1928056 2892084 3856112 5784168 7712224 11568336 23136672