Search a number
-
+
12986149613 = 37940185447
BaseRepresentation
bin11000001100000100…
…01110101011101101
31020112000201202022012
430012002032223231
5203043423241423
65544334131005
7636544310333
oct140602165355
936460652265
1012986149613
115564385458
122625050a65
1312bc5626c8
148b29a1b53
15510118078
hex30608eaed

12986149613 has 8 divisors (see below), whose sum is σ = 13053036480. Its totient is φ = 12919435200.

The previous prime is 12986149571. The next prime is 12986149651. The reversal of 12986149613 is 31694168921.

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

It is a cyclic number.

It is not a de Polignac number, because 12986149613 - 28 = 12986149357 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 (12986149313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109256 + ... + 194702.

It is an arithmetic number, because the mean of its divisors is an integer number (1631629560).

Almost surely, 212986149613 is an apocalyptic number.

It is an amenable number.

12986149613 is a deficient number, since it is larger than the sum of its proper divisors (66886867).

12986149613 is an equidigital number, since it uses as much as digits as its factorization.

12986149613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86227.

The product of its digits is 559872, while the sum is 50.

The spelling of 12986149613 in words is "twelve billion, nine hundred eighty-six million, one hundred forty-nine thousand, six hundred thirteen".

Divisors: 1 379 401 85447 151979 32384413 34264247 12986149613