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115319432620 = 22571031798943
BaseRepresentation
bin110101101100110010…
…0101110010110101100
3102000122210212011010001
41223121210232112230
53342133233320440
6124551011354044
711221503001240
oct1533144562654
9360583764101
10115319432620
11449a78a4617
121a4242b2924
13ab4a59b682
14581d876420
152eee0eab9a
hex1ad992e5ac

115319432620 has 48 divisors (see below), whose sum is σ = 277035429888. Its totient is φ = 39499692480.

The previous prime is 115319432609. The next prime is 115319432623. The reversal of 115319432620 is 26234913511.

It is a self number, because there is not a number n which added to its sum of digits gives 115319432620.

It is not an unprimeable number, because it can be changed into a prime (115319432623) 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, 255132 + ... + 543811.

It is an arithmetic number, because the mean of its divisors is an integer number (5771571456).

Almost surely, 2115319432620 is an apocalyptic number.

115319432620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115319432620 is an abundant number, since it is smaller than the sum of its proper divisors (161715997268).

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

115319432620 is a wasteful number, since it uses less digits than its factorization.

115319432620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799990 (or 799988 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The spelling of 115319432620 in words is "one hundred fifteen billion, three hundred nineteen million, four hundred thirty-two thousand, six hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 1031 2062 4124 5155 7217 10310 14434 20620 28868 36085 72170 144340 798943 1597886 3195772 3994715 5592601 7989430 11185202 15978860 22370404 27963005 55926010 111852020 823710233 1647420466 3294840932 4118551165 5765971631 8237102330 11531943262 16474204660 23063886524 28829858155 57659716310 115319432620