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23208872 = 232901109
BaseRepresentation
bin101100010001…
…0001110101000
31121200010120212
41120202032220
521420140442
62145240252
7401162231
oct130421650
947603525
1023208872
1112112195
127933088
134a67b7b
143122088
152086a82
hex16223a8

23208872 has 8 divisors (see below), whose sum is σ = 43516650. Its totient is φ = 11604432.

The previous prime is 23208847. The next prime is 23208881. The reversal of 23208872 is 27880232.

It can be written as a sum of positive squares in only one way, i.e., 12013156 + 11195716 = 3466^2 + 3346^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1450547 + ... + 1450562.

Almost surely, 223208872 is an apocalyptic number.

It is an amenable number.

23208872 is a deficient number, since it is larger than the sum of its proper divisors (20307778).

23208872 is a wasteful number, since it uses less digits than its factorization.

23208872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2901115 (or 2901111 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 23208872 is about 4817.5587178570. The cubic root of 23208872 is about 285.2449806997.

The spelling of 23208872 in words is "twenty-three million, two hundred eight thousand, eight hundred seventy-two".

Divisors: 1 2 4 8 2901109 5802218 11604436 23208872