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12404231144 = 238322938147
BaseRepresentation
bin10111000110101100…
…11000101111101000
31012000110202020020022
423203112120233220
5200400440344034
65410505420012
7616250140124
oct134326305750
935013666208
1012404231144
1152959574a8
1224a219a608
131228b27c56
148595a4584
154c8ebcb2e
hex2e3598be8

12404231144 has 32 divisors (see below), whose sum is σ = 23551305120. Its totient is φ = 6123967296.

The previous prime is 12404231129. The next prime is 12404231153. The reversal of 12404231144 is 44113240421.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1518479 + ... + 1526625.

It is an arithmetic number, because the mean of its divisors is an integer number (735978285).

Almost surely, 212404231144 is an apocalyptic number.

It is an amenable number.

12404231144 is a deficient number, since it is larger than the sum of its proper divisors (11147073976).

12404231144 is a wasteful number, since it uses less digits than its factorization.

12404231144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10529 (or 10525 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 12404231144 its reverse (44113240421), we get a palindrome (56517471565).

The spelling of 12404231144 in words is "twelve billion, four hundred four million, two hundred thirty-one thousand, one hundred forty-four".

Divisors: 1 2 4 8 83 166 332 664 2293 4586 8147 9172 16294 18344 32588 65176 190319 380638 676201 761276 1352402 1522552 2704804 5409608 18681071 37362142 74724284 149448568 1550528893 3101057786 6202115572 12404231144