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102516180 = 223513131431
BaseRepresentation
bin1100001110001…
…00010111010100
321010220100202120
412013010113110
5202221004210
614101135540
72353241664
oct607042724
9233810676
10102516180
115295aa18
122a3ba5b0
1318314b80
14d8881a4
159000270
hex61c45d4

102516180 has 48 divisors (see below), whose sum is σ = 309128064. Its totient is φ = 25234560.

The previous prime is 102516179. The next prime is 102516187. The reversal of 102516180 is 81615201.

It is a self number, because there is not a number n which added to its sum of digits gives 102516180.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102516187) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64936 + ... + 66495.

It is an arithmetic number, because the mean of its divisors is an integer number (6440168).

Almost surely, 2102516180 is an apocalyptic number.

102516180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102516180 is an abundant number, since it is smaller than the sum of its proper divisors (206611884).

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

102516180 is a wasteful number, since it uses less digits than its factorization.

102516180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131456 (or 131454 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 24.

The square root of 102516180 is about 10125.0274073703. The cubic root of 102516180 is about 468.0197047734.

It can be divided in two parts, 1025 and 16180, that added together give a triangular number (17205 = T185).

The spelling of 102516180 in words is "one hundred two million, five hundred sixteen thousand, one hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 26 30 39 52 60 65 78 130 156 195 260 390 780 131431 262862 394293 525724 657155 788586 1314310 1577172 1708603 1971465 2628620 3417206 3942930 5125809 6834412 7885860 8543015 10251618 17086030 20503236 25629045 34172060 51258090 102516180