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102645519260 = 2255132275963
BaseRepresentation
bin101111110011000100…
…1100101001110011100
3100210221112122122102112
41133212021211032130
53140204223104020
6115053225413152
710262436342434
oct1374611451634
9323845578375
10102645519260
113a5937a0959
1217a8793a1b8
1398aa92c45b
144d7a5512c4
152a0b60c2c5
hex17e626539c

102645519260 has 12 divisors (see below), whose sum is σ = 215555590488. Its totient is φ = 41058207696.

The previous prime is 102645519143. The next prime is 102645519271. The reversal of 102645519260 is 62915546201.

It is a super-2 number, since 2×1026455192602 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2566137962 + ... + 2566138001.

It is an arithmetic number, because the mean of its divisors is an integer number (17962965874).

Almost surely, 2102645519260 is an apocalyptic number.

102645519260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102645519260 is an abundant number, since it is smaller than the sum of its proper divisors (112910071228).

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

102645519260 is a wasteful number, since it uses less digits than its factorization.

102645519260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5132275972 (or 5132275970 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 41.

The spelling of 102645519260 in words is "one hundred two billion, six hundred forty-five million, five hundred nineteen thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 5132275963 10264551926 20529103852 25661379815 51322759630 102645519260