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6429813680 = 245143356087
BaseRepresentation
bin1011111110011111…
…10010101110110000
3121121002211101012102
411333033302232300
5101132013014210
62542005115532
7315223341323
oct57717625660
917532741172
106429813680
1127aa50a204
1212b53b8ba8
137b61485a4
1444dd347ba
15279739ea5
hex17f3f2bb0

6429813680 has 40 divisors (see below), whose sum is σ = 14960015712. Its totient is φ = 2570084864.

The previous prime is 6429813679. The next prime is 6429813701. The reversal of 6429813680 is 863189246.

It is a tau number, because it is divible by the number of its divisors (40).

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, 86597 + ... + 142683.

Almost surely, 26429813680 is an apocalyptic number.

It is an amenable number.

6429813680 is an abundant number, since it is smaller than the sum of its proper divisors (8530202032).

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

6429813680 is a wasteful number, since it uses less digits than its factorization.

6429813680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57533 (or 57527 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 47.

The square root of 6429813680 is about 80186.1189982406. The cubic root of 6429813680 is about 1859.5140442422.

The spelling of 6429813680 in words is "six billion, four hundred twenty-nine million, eight hundred thirteen thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 1433 2866 5732 7165 11464 14330 22928 28660 56087 57320 112174 114640 224348 280435 448696 560870 897392 1121740 2243480 4486960 80372671 160745342 321490684 401863355 642981368 803726710 1285962736 1607453420 3214906840 6429813680