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23189425 = 527132511
BaseRepresentation
bin101100001110…
…1011110110001
31121122010220121
41120131132301
521414030200
62145010241
7401051440
oct130353661
947563817
1023189425
11120a9616
127923981
134a5c06c
143118d57
152080e1a
hex161d7b1

23189425 has 12 divisors (see below), whose sum is σ = 32862976. Its totient is φ = 15901200.

The previous prime is 23189401. The next prime is 23189431. The reversal of 23189425 is 52498132.

It is not a de Polignac number, because 23189425 - 25 = 23189393 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66081 + ... + 66430.

Almost surely, 223189425 is an apocalyptic number.

23189425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23189425 is a deficient number, since it is larger than the sum of its proper divisors (9673551).

23189425 is a wasteful number, since it uses less digits than its factorization.

23189425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132528 (or 132523 counting only the distinct ones).

The product of its digits is 17280, while the sum is 34.

The square root of 23189425 is about 4815.5399489569. The cubic root of 23189425 is about 285.1652883418.

The spelling of 23189425 in words is "twenty-three million, one hundred eighty-nine thousand, four hundred twenty-five".

Divisors: 1 5 7 25 35 175 132511 662555 927577 3312775 4637885 23189425