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139527492 = 22313894407
BaseRepresentation
bin10000101000100…
…00010101000100
3100201112201201220
420110100111010
5241204334432
621502320340
73312651456
oct1024202504
9321481656
10139527492
117183a085
123a8890b0
1322ba3260
14147602d6
15c3b172c
hex8510544

139527492 has 24 divisors (see below), whose sum is σ = 350607936. Its totient is φ = 42931488.

The previous prime is 139527467. The next prime is 139527503. The reversal of 139527492 is 294725931.

139527492 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 447048 + ... + 447359.

It is an arithmetic number, because the mean of its divisors is an integer number (14608664).

Almost surely, 2139527492 is an apocalyptic number.

139527492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

139527492 is an abundant number, since it is smaller than the sum of its proper divisors (211080444).

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

139527492 is a wasteful number, since it uses less digits than its factorization.

139527492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894427 (or 894425 counting only the distinct ones).

The product of its digits is 136080, while the sum is 42.

The square root of 139527492 is about 11812.1755828467. The cubic root of 139527492 is about 518.6645862759.

The spelling of 139527492 in words is "one hundred thirty-nine million, five hundred twenty-seven thousand, four hundred ninety-two".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 894407 1788814 2683221 3577628 5366442 10732884 11627291 23254582 34881873 46509164 69763746 139527492