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23888489525 = 52955539581
BaseRepresentation
bin10110001111110111…
…010110110000110101
32021122211102000002022
4112033313112300311
5342410423131100
614550233122525
71503656545025
oct261767266065
967584360068
1023888489525
11a14947a82a
124768259445
132339185604
1412288cda85
1594c315e85
hex58fdd6c35

23888489525 has 6 divisors (see below), whose sum is σ = 29621727042. Its totient is φ = 19110791600.

The previous prime is 23888489519. The next prime is 23888489531. The reversal of 23888489525 is 52598488832.

It is an interprime number because it is at equal distance from previous prime (23888489519) and next prime (23888489531).

It can be written as a sum of positive squares in 3 ways, for example, as 5564264836 + 18324224689 = 74594^2 + 135367^2 .

It is a de Polignac number, because none of the positive numbers 2k-23888489525 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 477769766 + ... + 477769815.

It is an arithmetic number, because the mean of its divisors is an integer number (4936954507).

Almost surely, 223888489525 is an apocalyptic number.

23888489525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23888489525 is a deficient number, since it is larger than the sum of its proper divisors (5733237517).

23888489525 is an equidigital number, since it uses as much as digits as its factorization.

23888489525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 955539591 (or 955539586 counting only the distinct ones).

The product of its digits is 44236800, while the sum is 62.

The spelling of 23888489525 in words is "twenty-three billion, eight hundred eighty-eight million, four hundred eighty-nine thousand, five hundred twenty-five".

Divisors: 1 5 25 955539581 4777697905 23888489525