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12616131352 = 2311143365129
BaseRepresentation
bin10111011111111101…
…01110001100011000
31012120020110212200011
423233332232030120
5201314212200402
65443515251304
7624432230026
oct135776561430
935506425604
1012616131352
115394528240
122541149b34
1312609ba9a6
148797a3716
154dc8c7ed7
hex2effae318

12616131352 has 16 divisors (see below), whose sum is σ = 25805723400. Its totient is φ = 5734605120.

The previous prime is 12616131331. The next prime is 12616131379. The reversal of 12616131352 is 25313161621.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71682477 + ... + 71682652.

Almost surely, 212616131352 is an apocalyptic number.

It is an amenable number.

12616131352 is an abundant number, since it is smaller than the sum of its proper divisors (13189592048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12616131352 is a wasteful number, since it uses less digits than its factorization.

12616131352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143365146 (or 143365142 counting only the distinct ones).

The product of its digits is 6480, while the sum is 31.

Adding to 12616131352 its reverse (25313161621), we get a palindrome (37929292973).

The spelling of 12616131352 in words is "twelve billion, six hundred sixteen million, one hundred thirty-one thousand, three hundred fifty-two".

Divisors: 1 2 4 8 11 22 44 88 143365129 286730258 573460516 1146921032 1577016419 3154032838 6308065676 12616131352