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208044430264 = 231119124428487
BaseRepresentation
bin1100000111000001101…
…0100001001110111000
3201212222222022002021001
43001300122201032320
511402033333232024
6235324014054344
721013351323316
oct3016032411670
9655888262231
10208044430264
118025a725780
12343a17aa3b4
1316806b1a498
14a0d86330b6
1556297e9244
hex30706a13b8

208044430264 has 32 divisors (see below), whose sum is σ = 447942556800. Its totient is φ = 89588509920.

The previous prime is 208044430147. The next prime is 208044430301. The reversal of 208044430264 is 462034440802.

It is a congruent number.

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, 62212572 + ... + 62215915.

It is an arithmetic number, because the mean of its divisors is an integer number (13998204900).

Almost surely, 2208044430264 is an apocalyptic number.

It is an amenable number.

208044430264 is an abundant number, since it is smaller than the sum of its proper divisors (239898126536).

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

208044430264 is a wasteful number, since it uses less digits than its factorization.

208044430264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124428523 (or 124428519 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 37.

The spelling of 208044430264 in words is "two hundred eight billion, forty-four million, four hundred thirty thousand, two hundred sixty-four".

Divisors: 1 2 4 8 11 19 22 38 44 76 88 152 209 418 836 1672 124428487 248856974 497713948 995427896 1368713357 2364141253 2737426714 4728282506 5474853428 9456565012 10949706856 18913130024 26005553783 52011107566 104022215132 208044430264