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12429331964 = 227279802721
BaseRepresentation
bin10111001001101100…
…01000110111111100
31012002012222111002022
423210312020313330
5200423402110324
65413203415312
7620003402300
oct134466106774
935065874068
1012429331964
1152a9041085
1224aa684538
1312310a5cca
1485ca59d00
154cb2ca05e
hex2e4d88dfc

12429331964 has 36 divisors (see below), whose sum is σ = 25622886240. Its totient is φ = 5259421440.

The previous prime is 12429331961. The next prime is 12429332017. The reversal of 12429331964 is 46913392421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12429331961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 385877 + ... + 416844.

It is an arithmetic number, because the mean of its divisors is an integer number (711746840).

Almost surely, 212429331964 is an apocalyptic number.

12429331964 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12429331964 is an abundant number, since it is smaller than the sum of its proper divisors (13193554276).

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

12429331964 is a wasteful number, since it uses less digits than its factorization.

12429331964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802818 (or 802809 counting only the distinct ones).

The product of its digits is 279936, while the sum is 44.

The spelling of 12429331964 in words is "twelve billion, four hundred twenty-nine million, three hundred thirty-one thousand, nine hundred sixty-four".

Divisors: 1 2 4 7 14 28 49 79 98 158 196 316 553 1106 2212 3871 7742 15484 802721 1605442 3210884 5619047 11238094 22476188 39333329 63414959 78666658 126829918 157333316 253659836 443904713 887809426 1775618852 3107332991 6214665982 12429331964