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23290972 = 225822743
BaseRepresentation
bin101100011011…
…0010001011100
31121211022012121
41120312101130
521430302342
62151112324
7401653465
oct130662134
947738177
1023290972
1112168941
1279726a4
134a96353
143143d6c
1520a1067
hex163645c

23290972 has 6 divisors (see below), whose sum is σ = 40759208. Its totient is φ = 11645484.

The previous prime is 23290957. The next prime is 23290999. The reversal of 23290972 is 27909232.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2911368 + ... + 2911375.

Almost surely, 223290972 is an apocalyptic number.

It is an amenable number.

23290972 is a deficient number, since it is larger than the sum of its proper divisors (17468236).

23290972 is a wasteful number, since it uses less digits than its factorization.

23290972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5822747 (or 5822745 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 23290972 is about 4826.0721088687. The cubic root of 23290972 is about 285.5809305766.

It can be divided in two parts, 232 and 90972, that added together give a square (91204 = 3022).

The spelling of 23290972 in words is "twenty-three million, two hundred ninety thousand, nine hundred seventy-two".

Divisors: 1 2 4 5822743 11645486 23290972