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12915249348 = 22343238910477
BaseRepresentation
bin11000000011100111…
…10001000011000100
31020100002022122102110
430001303301003010
5202422300434343
65533322341020
7635023544121
oct140163610304
936302278373
1012915249348
115528359aa1
12260535a770
1312aa96a1a1
148a73c7748
15508cb0833
hex301cf10c4

12915249348 has 48 divisors (see below), whose sum is σ = 30852261440. Its totient is φ = 4202803584.

The previous prime is 12915249337. The next prime is 12915249353. The reversal of 12915249348 is 84394251921.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12915249297 and 12915249306.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1227486 + ... + 1237962.

Almost surely, 212915249348 is an apocalyptic number.

It is an amenable number.

12915249348 is an abundant number, since it is smaller than the sum of its proper divisors (17937012092).

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

12915249348 is a wasteful number, since it uses less digits than its factorization.

12915249348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12916 (or 12914 counting only the distinct ones).

The product of its digits is 622080, while the sum is 48.

The spelling of 12915249348 in words is "twelve billion, nine hundred fifteen million, two hundred forty-nine thousand, three hundred forty-eight".

Divisors: 1 2 3 4 6 12 43 86 129 172 258 516 2389 4778 7167 9556 10477 14334 20954 28668 31431 41908 62862 102727 125724 205454 308181 410908 450511 616362 901022 1232724 1351533 1802044 2703066 5406132 25029553 50059106 75088659 100118212 150177318 300354636 1076270779 2152541558 3228812337 4305083116 6457624674 12915249348