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12570013937 = 132074946601
BaseRepresentation
bin10111011010011101…
…10011000011110001
31012110000200212110202
423231032303003301
5201220410421222
65435151004545
7623332232645
oct135516630361
935400625422
1012570013937
115370499578
122529809755
131254291890
148735dac25
154d8818892
hex2ed3b30f1

12570013937 has 8 divisors (see below), whose sum is σ = 13537881000. Its totient is φ = 11602281600.

The previous prime is 12570013921. The next prime is 12570013949. The reversal of 12570013937 is 73931007521.

It can be written as a sum of positive squares in 4 ways, for example, as 1371294961 + 11198718976 = 37031^2 + 105824^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12570013937 - 24 = 12570013921 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 12570013937.

It is not an unprimeable number, because it can be changed into a prime (12570013237) 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 7 ways as a sum of consecutive naturals, for example, 246437 + ... + 293037.

It is an arithmetic number, because the mean of its divisors is an integer number (1692235125).

Almost surely, 212570013937 is an apocalyptic number.

It is an amenable number.

12570013937 is a deficient number, since it is larger than the sum of its proper divisors (967867063).

12570013937 is a wasteful number, since it uses less digits than its factorization.

12570013937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67363.

The product of its (nonzero) digits is 39690, while the sum is 38.

The spelling of 12570013937 in words is "twelve billion, five hundred seventy million, thirteen thousand, nine hundred thirty-seven".

Divisors: 1 13 20749 46601 269737 605813 966924149 12570013937