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129964704 = 2538271637
BaseRepresentation
bin1111011111100…
…01101010100000
3100001112220001120
413233301222200
5231232332304
620521332240
73135452562
oct757615240
9301486046
10129964704
11673a8451
1237637080
1320c056bc
1413391332
15b6230d9
hex7bf1aa0

129964704 has 48 divisors (see below), whose sum is σ = 341778528. Its totient is φ = 43242752.

The previous prime is 129964691. The next prime is 129964727. The reversal of 129964704 is 407469921.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-4 number, since 4×1299647044 (a number of 34 digits) contains 4444 as substring.

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, 78574 + ... + 80210.

It is an arithmetic number, because the mean of its divisors is an integer number (7120386).

Almost surely, 2129964704 is an apocalyptic number.

It is an amenable number.

129964704 is an abundant number, since it is smaller than the sum of its proper divisors (211813824).

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

129964704 is a wasteful number, since it uses less digits than its factorization.

129964704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2477 (or 2469 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 129964704 is about 11400.2063139226. The cubic root of 129964704 is about 506.5338509983.

The spelling of 129964704 in words is "one hundred twenty-nine million, nine hundred sixty-four thousand, seven hundred four".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 827 1637 1654 2481 3274 3308 4911 4962 6548 6616 9822 9924 13096 13232 19644 19848 26192 26464 39288 39696 52384 78576 79392 157152 1353799 2707598 4061397 5415196 8122794 10830392 16245588 21660784 32491176 43321568 64982352 129964704