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23113925 = 52924557
BaseRepresentation
bin101100000101…
…1000011000101
31121111022100022
41120023003011
521404121200
62143224525
7400315352
oct130130305
947438308
1023113925
111205791a
1278a8145
134a338a3
1430d9629
152068885
hex160b0c5

23113925 has 6 divisors (see below), whose sum is σ = 28661298. Its totient is φ = 18491120.

The previous prime is 23113913. The next prime is 23113927. The reversal of 23113925 is 52931132.

It can be written as a sum of positive squares in 3 ways, for example, as 3034564 + 20079361 = 1742^2 + 4481^2 .

It is not a de Polignac number, because 23113925 - 28 = 23113669 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23113894 and 23113903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23113927) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 462254 + ... + 462303.

It is an arithmetic number, because the mean of its divisors is an integer number (4776883).

Almost surely, 223113925 is an apocalyptic number.

23113925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23113925 is a deficient number, since it is larger than the sum of its proper divisors (5547373).

23113925 is an equidigital number, since it uses as much as digits as its factorization.

23113925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924567 (or 924562 counting only the distinct ones).

The product of its digits is 1620, while the sum is 26.

The square root of 23113925 is about 4807.6943538457. The cubic root of 23113925 is about 284.8554720160.

The spelling of 23113925 in words is "twenty-three million, one hundred thirteen thousand, nine hundred twenty-five".

Divisors: 1 5 25 924557 4622785 23113925