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136188630 = 23251513207
BaseRepresentation
bin10000001111000…
…01001011010110
3100111021002200100
420013201023112
5234331014010
621302554530
73242404254
oct1007411326
9314232610
10136188630
116a969596
1239738a46
13222a45b6
14141315d4
15be522c0
hex81e12d6

136188630 has 24 divisors (see below), whose sum is σ = 354090672. Its totient is φ = 36316944.

The previous prime is 136188629. The next prime is 136188631. The reversal of 136188630 is 36881631.

136188630 is a `hidden beast` number, since 1 + 3 + 6 + 18 + 8 + 630 = 666.

It is an interprime number because it is at equal distance from previous prime (136188629) and next prime (136188631).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136188631) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 756514 + ... + 756693.

It is an arithmetic number, because the mean of its divisors is an integer number (14753778).

Almost surely, 2136188630 is an apocalyptic number.

136188630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

136188630 is an abundant number, since it is smaller than the sum of its proper divisors (217902042).

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

136188630 is a wasteful number, since it uses less digits than its factorization.

136188630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1513220 (or 1513217 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 136188630 is about 11669.9884318709. The cubic root of 136188630 is about 514.4939636121.

The spelling of 136188630 in words is "one hundred thirty-six million, one hundred eighty-eight thousand, six hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 1513207 3026414 4539621 7566035 9079242 13618863 15132070 22698105 27237726 45396210 68094315 136188630