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208570428704 = 25111051563777
BaseRepresentation
bin1100001000111111000…
…1000010110100100000
3201221100122001120110202
43002033301002310200
511404123012204304
6235452124044332
721032366251421
oct3021761026440
9657318046422
10208570428704
11804aa62a130
12345099936a8
131688baa6071
14a148435648
15565aa9a81e
hex308fc42d20

208570428704 has 48 divisors (see below), whose sum is σ = 448379408736. Its totient is φ = 94714368000.

The previous prime is 208570428697. The next prime is 208570428743. The reversal of 208570428704 is 407824075802.

It is a happy number.

208570428704 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 88064 + ... + 651840.

It is an arithmetic number, because the mean of its divisors is an integer number (9341237682).

Almost surely, 2208570428704 is an apocalyptic number.

It is an amenable number.

208570428704 is an abundant number, since it is smaller than the sum of its proper divisors (239808980032).

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

208570428704 is a wasteful number, since it uses less digits than its factorization.

208570428704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564849 (or 564841 counting only the distinct ones).

The product of its (nonzero) digits is 1003520, while the sum is 47.

The spelling of 208570428704 in words is "two hundred eight billion, five hundred seventy million, four hundred twenty-eight thousand, seven hundred four".

Divisors: 1 2 4 8 11 16 22 32 44 88 176 352 1051 2102 4204 8408 11561 16816 23122 33632 46244 92488 184976 369952 563777 1127554 2255108 4510216 6201547 9020432 12403094 18040864 24806188 49612376 99224752 198449504 592529627 1185059254 2370118508 4740237016 6517825897 9480474032 13035651794 18960948064 26071303588 52142607176 104285214352 208570428704