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129791364 = 22311519397
BaseRepresentation
bin1111011110001…
…11010110000100
3100001020002021120
413233013112010
5231211310424
620513513540
73134131323
oct757072604
9301202246
10129791364
116729a19a
12375728b0
1320b74831
14133480ba
15b5dba79
hex7bc7584

129791364 has 24 divisors (see below), whose sum is σ = 303141888. Its totient is φ = 43221600.

The previous prime is 129791357. The next prime is 129791377. The reversal of 129791364 is 463197921.

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, 9114 + ... + 18510.

It is an arithmetic number, because the mean of its divisors is an integer number (12630912).

Almost surely, 2129791364 is an apocalyptic number.

It is an amenable number.

129791364 is an abundant number, since it is smaller than the sum of its proper divisors (173350524).

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

129791364 is a wasteful number, since it uses less digits than its factorization.

129791364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10555 (or 10553 counting only the distinct ones).

The product of its digits is 81648, while the sum is 42.

The square root of 129791364 is about 11392.6012832891. The cubic root of 129791364 is about 506.3085548488.

The spelling of 129791364 in words is "one hundred twenty-nine million, seven hundred ninety-one thousand, three hundred sixty-four".

Divisors: 1 2 3 4 6 12 1151 2302 3453 4604 6906 9397 13812 18794 28191 37588 56382 112764 10815947 21631894 32447841 43263788 64895682 129791364