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129080304 = 2434137727
BaseRepresentation
bin1111011000110…
…01101111110000
322222212221220000
413230121233300
5231021032204
620450350000
73125110263
oct754315760
9288787800
10129080304
1166953a41
123728b300
1320985ca2
1413200cda
15b4eb039
hex7b19bf0

129080304 has 100 divisors (see below), whose sum is σ = 376840464. Its totient is φ = 42653952.

The previous prime is 129080297. The next prime is 129080327. The reversal of 129080304 is 403080921.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 177189 + ... + 177915.

Almost surely, 2129080304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 129080304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188420232).

129080304 is an abundant number, since it is smaller than the sum of its proper divisors (247760160).

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

129080304 is a wasteful number, since it uses less digits than its factorization.

129080304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884 (or 869 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 129080304 is about 11361.3513280771. The cubic root of 129080304 is about 505.3822599984.

The spelling of 129080304 in words is "one hundred twenty-nine million, eighty thousand, three hundred four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 81 108 137 144 162 216 274 324 411 432 548 648 727 822 1096 1233 1296 1454 1644 2181 2192 2466 2908 3288 3699 4362 4932 5816 6543 6576 7398 8724 9864 11097 11632 13086 14796 17448 19629 19728 22194 26172 29592 34896 39258 44388 52344 58887 59184 78516 88776 99599 104688 117774 157032 177552 199198 235548 298797 314064 398396 471096 597594 796792 896391 942192 1195188 1593584 1792782 2390376 2689173 3585564 4780752 5378346 7171128 8067519 10756692 14342256 16135038 21513384 32270076 43026768 64540152 129080304