Search a number
-
+
12311680398 = 2317123797577
BaseRepresentation
bin10110111011101010…
…10101010110001110
31011210000121011110220
423131311111112032
5200203242233043
65353402012210
7614044361643
oct133565252616
934700534426
1012311680398
115248693786
1224771a7066
1312128c1cb4
1484b191dca
154c0cda483
hex2ddd5558e

12311680398 has 32 divisors (see below), whose sum is σ = 26093137824. Its totient is φ = 3859325952.

The previous prime is 12311680397. The next prime is 12311680427. The reversal of 12311680398 is 89308611321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12311680397) 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, 77386 + ... + 174962.

It is an arithmetic number, because the mean of its divisors is an integer number (815410557).

Almost surely, 212311680398 is an apocalyptic number.

12311680398 is an abundant number, since it is smaller than the sum of its proper divisors (13781457426).

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

12311680398 is a wasteful number, since it uses less digits than its factorization.

12311680398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98836.

The product of its (nonzero) digits is 62208, while the sum is 42.

The spelling of 12311680398 in words is "twelve billion, three hundred eleven million, six hundred eighty thousand, three hundred ninety-eight".

Divisors: 1 2 3 6 17 34 51 102 1237 2474 3711 7422 21029 42058 63087 97577 126174 195154 292731 585462 1658809 3317618 4976427 9952854 120702749 241405498 362108247 724216494 2051946733 4103893466 6155840199 12311680398