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2680520188 = 222367434867
BaseRepresentation
bin1001111111000101…
…0111110111111100
320220210212112102111
42133301113313330
520442203121223
61121552503404
7123266021443
oct23761276774
96823775374
102680520188
1111560a1545
1262984ab64
13339456028
141b6001d5a
1510a4d830d
hex9fc57dfc

2680520188 has 24 divisors (see below), whose sum is σ = 4967932032. Its totient is φ = 1262850864.

The previous prime is 2680520153. The next prime is 2680520191. The reversal of 2680520188 is 8810250862.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2680520188.

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, 211270 + ... + 223597.

It is an arithmetic number, because the mean of its divisors is an integer number (206997168).

Almost surely, 22680520188 is an apocalyptic number.

It is an amenable number.

2680520188 is a deficient number, since it is larger than the sum of its proper divisors (2287411844).

2680520188 is a wasteful number, since it uses less digits than its factorization.

2680520188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434961 (or 434959 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 40.

The square root of 2680520188 is about 51773.7403323345. The cubic root of 2680520188 is about 1389.1197760278.

The spelling of 2680520188 in words is "two billion, six hundred eighty million, five hundred twenty thousand, one hundred eighty-eight".

Divisors: 1 2 4 23 46 67 92 134 268 1541 3082 6164 434867 869734 1739468 10001941 20003882 29136089 40007764 58272178 116544356 670130047 1340260094 2680520188