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8135697102 = 2313319734687
BaseRepresentation
bin1111001001110110…
…01110001011001110
3202222222202020022220
413210323032023032
5113130214301402
63423144120210
7405416166351
oct74473161316
922888666286
108135697102
1134a5430715
1216b0766066
139c86a4a70
1457270c298
153293a1dbc
hex1e4ece2ce

8135697102 has 64 divisors (see below), whose sum is σ = 18275303424. Its totient is φ = 2397496320.

The previous prime is 8135697079. The next prime is 8135697109. The reversal of 8135697102 is 2017965318.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8135697109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 217203 + ... + 251889.

It is an arithmetic number, because the mean of its divisors is an integer number (285551616).

Almost surely, 28135697102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8135697102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9137651712).

8135697102 is an abundant number, since it is smaller than the sum of its proper divisors (10139606322).

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

8135697102 is a wasteful number, since it uses less digits than its factorization.

8135697102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34833.

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 8135697102 is about 90198.0992150056. The cubic root of 8135697102 is about 2011.2447511330.

The spelling of 8135697102 in words is "eight billion, one hundred thirty-five million, six hundred ninety-seven thousand, one hundred two".

Divisors: 1 2 3 6 13 26 31 39 62 78 93 97 186 194 291 403 582 806 1209 1261 2418 2522 3007 3783 6014 7566 9021 18042 34687 39091 69374 78182 104061 117273 208122 234546 450931 901862 1075297 1352793 2150594 2705586 3225891 3364639 6451782 6729278 10093917 13978861 20187834 27957722 41936583 43740307 83873166 87480614 104303809 131220921 208607618 262441842 312911427 625822854 1355949517 2711899034 4067848551 8135697102