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12310422340 = 225615521117
BaseRepresentation
bin10110111011100001…
…00010001101000100
31011202221020020202011
423131300202031010
5200202432003330
65353315024004
7614030602066
oct133560421504
934687206664
1012310422340
115247a04567
12247689b004
131212571498
1484ad45736
154c0b3c82a
hex2ddc22344

12310422340 has 12 divisors (see below), whose sum is σ = 25851886956. Its totient is φ = 4924168928.

The previous prime is 12310422337. The next prime is 12310422359. The reversal of 12310422340 is 4322401321.

It can be written as a sum of positive squares in 2 ways, for example, as 1784893504 + 10525528836 = 42248^2 + 102594^2 .

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, 307760539 + ... + 307760578.

It is an arithmetic number, because the mean of its divisors is an integer number (2154323913).

Almost surely, 212310422340 is an apocalyptic number.

12310422340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12310422340 is an abundant number, since it is smaller than the sum of its proper divisors (13541464616).

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

12310422340 is a wasteful number, since it uses less digits than its factorization.

12310422340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615521126 (or 615521124 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 12310422340 its reverse (4322401321), we get a palindrome (16632823661).

The spelling of 12310422340 in words is "twelve billion, three hundred ten million, four hundred twenty-two thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 615521117 1231042234 2462084468 3077605585 6155211170 12310422340