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23612431457 = 70459335123
BaseRepresentation
bin10101111111011010…
…010001110001100001
32020221120221210121102
4111333122101301201
5341324240301312
614503012204145
71464065233016
oct257732216141
966846853542
1023612431457
11a01766926a
1246ab909655
1322c3c1b244
1411ddd8d70d
15932e85ec2
hex57f691c61

23612431457 has 4 divisors (see below), whose sum is σ = 23612837040. Its totient is φ = 23612025876.

The previous prime is 23612431441. The next prime is 23612431463. The reversal of 23612431457 is 75413421632.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23612431457 - 24 = 23612431441 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23612431457.

It is not an unprimeable number, because it can be changed into a prime (23612431657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97103 + ... + 238020.

It is an arithmetic number, because the mean of its divisors is an integer number (5903209260).

Almost surely, 223612431457 is an apocalyptic number.

It is an amenable number.

23612431457 is a deficient number, since it is larger than the sum of its proper divisors (405583).

23612431457 is an equidigital number, since it uses as much as digits as its factorization.

23612431457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405582.

The product of its digits is 120960, while the sum is 38.

The spelling of 23612431457 in words is "twenty-three billion, six hundred twelve million, four hundred thirty-one thousand, four hundred fifty-seven".

Divisors: 1 70459 335123 23612431457