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23265739 = 72474811
BaseRepresentation
bin101100011000…
…0000111001011
31121210000121001
41120300013023
521424000424
62150355431
7401520100
oct130600713
947700531
1023265739
1112150992
12795bb77
134a87a13
143138aa7
152098844
hex16301cb

23265739 has 6 divisors (see below), whose sum is σ = 27064284. Its totient is φ = 19942020.

The previous prime is 23265733. The next prime is 23265761. The reversal of 23265739 is 93756232.

It is not a de Polignac number, because 23265739 - 215 = 23232971 is a prime.

It is a super-2 number, since 2×232657392 = 1082589222432242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23265698 and 23265707.

It is not an unprimeable number, because it can be changed into a prime (23265733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 237357 + ... + 237454.

It is an arithmetic number, because the mean of its divisors is an integer number (4510714).

Almost surely, 223265739 is an apocalyptic number.

23265739 is a deficient number, since it is larger than the sum of its proper divisors (3798545).

23265739 is an equidigital number, since it uses as much as digits as its factorization.

23265739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474825 (or 474818 counting only the distinct ones).

The product of its digits is 68040, while the sum is 37.

The square root of 23265739 is about 4823.4571626583. The cubic root of 23265739 is about 285.4777623119.

The spelling of 23265739 in words is "twenty-three million, two hundred sixty-five thousand, seven hundred thirty-nine".

Divisors: 1 7 49 474811 3323677 23265739