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12612031437 = 315168340763
BaseRepresentation
bin10111011111011110…
…00101001111001101
31012112221202120122110
423233233011033031
5201312140001222
65443251334233
7624352332645
oct135757051715
935487676573
1012612031437
115392187985
12253b8b1379
13125cbb37c5
14879017525
154dc36830c
hex2efbc53cd

12612031437 has 16 divisors (see below), whose sum is σ = 16952606208. Its totient is φ = 8339905200.

The previous prime is 12612031433. The next prime is 12612031457. The reversal of 12612031437 is 73413021621.

It is a happy number.

It is not a de Polignac number, because 12612031437 - 22 = 12612031433 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12612031433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 289018 + ... + 329780.

It is an arithmetic number, because the mean of its divisors is an integer number (1059537888).

Almost surely, 212612031437 is an apocalyptic number.

It is an amenable number.

12612031437 is a deficient number, since it is larger than the sum of its proper divisors (4340574771).

12612031437 is a wasteful number, since it uses less digits than its factorization.

12612031437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41600.

The product of its (nonzero) digits is 6048, while the sum is 30.

The spelling of 12612031437 in words is "twelve billion, six hundred twelve million, thirty-one thousand, four hundred thirty-seven".

Divisors: 1 3 151 453 683 2049 40763 103133 122289 309399 6155213 18465639 27841129 83523387 4204010479 12612031437