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12919891982424 = 2337274927975307
BaseRepresentation
bin1011110000000010010110…
…0100100111100001011000
31200202010111111010121000120
42330000211210213201120
53143134414321414144
643251152203433240
72502300652602630
oct274004544474130
950663444117016
1012919891982424
114131328226499
121547b65825820
1372945736369b
1432947cbad6c0
1517612197ce19
hexbc025927858

12919891982424 has 64 divisors (see below), whose sum is σ = 36927406560000. Its totient is φ = 3690054762624.

The previous prime is 12919891982411. The next prime is 12919891982429. The reversal of 12919891982424 is 42428919891921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12919891982429) 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, 13525822 + ... + 14449485.

It is an arithmetic number, because the mean of its divisors is an integer number (576990727500).

Almost surely, 212919891982424 is an apocalyptic number.

12919891982424 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12919891982424 is an abundant number, since it is smaller than the sum of its proper divisors (24007514577576).

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

12919891982424 is a wasteful number, since it uses less digits than its factorization.

12919891982424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27978072 (or 27978068 counting only the distinct ones).

The product of its digits is 53747712, while the sum is 69.

The spelling of 12919891982424 in words is "twelve trillion, nine hundred nineteen billion, eight hundred ninety-one million, nine hundred eighty-two thousand, four hundred twenty-four".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 168 2749 5498 8247 10996 16494 19243 21992 32988 38486 57729 65976 76972 115458 153944 230916 461832 27975307 55950614 83925921 111901228 167851842 195827149 223802456 335703684 391654298 587481447 671407368 783308596 1174962894 1566617192 2349925788 4699851576 76904118943 153808237886 230712356829 307616475772 461424713658 538328832601 615232951544 922849427316 1076657665202 1614986497803 1845698854632 2153315330404 3229972995606 4306630660808 6459945991212 12919891982424