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23616140461 = 17281716749
BaseRepresentation
bin10101111111101000…
…011011010010101101
32020221211221020101221
4111333220123102231
5341331212443321
614503223503341
71464141611314
oct257750332255
966854836357
1023616140461
11a019771961
1246b0bb7b51
1322c4919514
14120067727b
15933469e41
hex57fa1b4ad

23616140461 has 6 divisors (see below), whose sum is σ = 25087042250. Its totient is φ = 22226955456.

The previous prime is 23616140441. The next prime is 23616140501. The reversal of 23616140461 is 16404161632.

It can be written as a sum of positive squares in 3 ways, for example, as 12357657225 + 11258483236 = 111165^2 + 106106^2 .

It is not a de Polignac number, because 23616140461 - 27 = 23616140333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23616140441) 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, 40858086 + ... + 40858663.

Almost surely, 223616140461 is an apocalyptic number.

It is an amenable number.

23616140461 is a deficient number, since it is larger than the sum of its proper divisors (1470901789).

23616140461 is an equidigital number, since it uses as much as digits as its factorization.

23616140461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81716783 (or 81716766 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The spelling of 23616140461 in words is "twenty-three billion, six hundred sixteen million, one hundred forty thousand, four hundred sixty-one".

Divisors: 1 17 289 81716749 1389184733 23616140461