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129410964 = 22323899241
BaseRepresentation
bin1111011011010…
…10011110010100
3100000111202110200
413231222132110
5231112122324
620501420500
73130655304
oct755523624
9300452420
10129410964
116705a411
123740a730
1320a70647
1413289604
15b563ec9
hex7b6a794

129410964 has 36 divisors (see below), whose sum is σ = 327998580. Its totient is φ = 43021440.

The previous prime is 129410959. The next prime is 129410993. The reversal of 129410964 is 469014921.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 90098064 + 39312900 = 9492^2 + 6270^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9384 + ... + 18624.

Almost surely, 2129410964 is an apocalyptic number.

It is an amenable number.

129410964 is an abundant number, since it is smaller than the sum of its proper divisors (198587616).

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

129410964 is a wasteful number, since it uses less digits than its factorization.

129410964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9640 (or 9635 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 129410964 is about 11375.8939868478. The cubic root of 129410964 is about 505.8134314031.

The spelling of 129410964 in words is "one hundred twenty-nine million, four hundred ten thousand, nine hundred sixty-four".

Divisors: 1 2 3 4 6 9 12 18 36 389 778 1167 1556 2334 3501 4668 7002 9241 14004 18482 27723 36964 55446 83169 110892 166338 332676 3594749 7189498 10784247 14378996 21568494 32352741 43136988 64705482 129410964