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102987805260 = 22351716463421
BaseRepresentation
bin101111111101010001…
…1010011001001001100
3100211211101201120112210
41133322203103021030
53141404334232020
6115151214030420
710304063621004
oct1377243231114
9324741646483
10102987805260
113a749a2744a
1217b624a8410
139933814452
144dadbb1004
152a2b6c03e0
hex17fa8d324c

102987805260 has 24 divisors (see below), whose sum is σ = 288365854896. Its totient is φ = 27463414720.

The previous prime is 102987805259. The next prime is 102987805267. The reversal of 102987805260 is 62508789201.

It is a super-3 number, since 3×1029878052603 (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (102987805267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 858231651 + ... + 858231770.

It is an arithmetic number, because the mean of its divisors is an integer number (12015243954).

Almost surely, 2102987805260 is an apocalyptic number.

102987805260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102987805260 is an abundant number, since it is smaller than the sum of its proper divisors (185378049636).

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

102987805260 is a wasteful number, since it uses less digits than its factorization.

102987805260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1716463433 (or 1716463431 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 48.

The spelling of 102987805260 in words is "one hundred two billion, nine hundred eighty-seven million, eight hundred five thousand, two hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 1716463421 3432926842 5149390263 6865853684 8582317105 10298780526 17164634210 20597561052 25746951315 34329268420 51493902630 102987805260