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23005672 = 232875709
BaseRepresentation
bin101011111000…
…0100111101000
31121021210211221
41113300213220
521342140142
62141031424
7366354634
oct127604750
947253757
1023005672
1111a93558
127855574
1349c6531
1430abdc4
152046767
hex15f09e8

23005672 has 8 divisors (see below), whose sum is σ = 43135650. Its totient is φ = 11502832.

The previous prime is 23005667. The next prime is 23005673. The reversal of 23005672 is 27650032.

It can be written as a sum of positive squares in only one way, i.e., 14791716 + 8213956 = 3846^2 + 2866^2 .

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

It is not an unprimeable number, because it can be changed into a prime (23005673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1437847 + ... + 1437862.

Almost surely, 223005672 is an apocalyptic number.

It is an amenable number.

23005672 is a deficient number, since it is larger than the sum of its proper divisors (20129978).

23005672 is a wasteful number, since it uses less digits than its factorization.

23005672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2875715 (or 2875711 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 23005672 is about 4796.4228337377. The cubic root of 23005672 is about 284.4100734746.

The spelling of 23005672 in words is "twenty-three million, five thousand, six hundred seventy-two".

Divisors: 1 2 4 8 2875709 5751418 11502836 23005672