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87620196 = 22328325801
BaseRepresentation
bin1010011100011…
…11101001100100
320002212120022110
411032033221210
5134412321241
612410001020
72112521316
oct516175144
9202776273
1087620196
1145506394
1225416170
13151ca991
14b8cb7b6
157a5b816
hex538fa64

87620196 has 24 divisors (see below), whose sum is σ = 205177504. Its totient is φ = 29102400.

The previous prime is 87620171. The next prime is 87620219. The reversal of 87620196 is 69102678.

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, 9505 + ... + 16296.

Almost surely, 287620196 is an apocalyptic number.

It is an amenable number.

87620196 is an abundant number, since it is smaller than the sum of its proper divisors (117557308).

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

87620196 is a wasteful number, since it uses less digits than its factorization.

87620196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26091 (or 26089 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 87620196 is about 9360.5660085275. The cubic root of 87620196 is about 444.1551888323.

The spelling of 87620196 in words is "eighty-seven million, six hundred twenty thousand, one hundred ninety-six".

Divisors: 1 2 3 4 6 12 283 566 849 1132 1698 3396 25801 51602 77403 103204 154806 309612 7301683 14603366 21905049 29206732 43810098 87620196