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131104302 = 23722915377
BaseRepresentation
bin1111101000001…
…11111000101110
3100010200210021220
413310013320232
5232030314202
621002004210
73151240200
oct764077056
9303623256
10131104302
116800666a
1237aa6666
1321214314
14135aa770
15b79aabc
hex7d07e2e

131104302 has 48 divisors (see below), whose sum is σ = 315556560. Its totient is φ = 36164352.

The previous prime is 131104297. The next prime is 131104307. The reversal of 131104302 is 203401131.

It is an interprime number because it is at equal distance from previous prime (131104297) and next prime (131104307).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131104307) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 838 + ... + 16214.

It is an arithmetic number, because the mean of its divisors is an integer number (6574095).

Almost surely, 2131104302 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131104302, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157778280).

131104302 is an abundant number, since it is smaller than the sum of its proper divisors (184452258).

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

131104302 is a wasteful number, since it uses less digits than its factorization.

131104302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15425 (or 15418 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 131104302 is about 11450.0786896859. The cubic root of 131104302 is about 508.0100619042.

Adding to 131104302 its reverse (203401131), we get a palindrome (334505433).

The spelling of 131104302 in words is "one hundred thirty-one million, one hundred four thousand, three hundred two".

Divisors: 1 2 3 6 7 14 21 29 42 49 58 87 98 147 174 203 294 406 609 1218 1421 2842 4263 8526 15377 30754 46131 92262 107639 215278 322917 445933 645834 753473 891866 1337799 1506946 2260419 2675598 3121531 4520838 6243062 9364593 18729186 21850717 43701434 65552151 131104302