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136728084 = 223611511237
BaseRepresentation
bin10000010011001…
…00111000010100
3100112021111200010
420021210320110
5240000244314
621322320220
73250112103
oct1011447024
9315244603
10136728084
11701a7919
1239959070
1322432cbc
141423203a
15c00c059
hex8264e14

136728084 has 48 divisors (see below), whose sum is σ = 326673536. Its totient is φ = 44496000.

The previous prime is 136728083. The next prime is 136728091. The reversal of 136728084 is 480827631.

It is a super-2 number, since 2×1367280842 = 37389137908622112, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136728083) 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, 109914 + ... + 111150.

Almost surely, 2136728084 is an apocalyptic number.

It is an amenable number.

136728084 is an abundant number, since it is smaller than the sum of its proper divisors (189945452).

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

136728084 is a wasteful number, since it uses less digits than its factorization.

136728084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1456 (or 1454 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 136728084 is about 11693.0784654855. The cubic root of 136728084 is about 515.1723858137.

The spelling of 136728084 in words is "one hundred thirty-six million, seven hundred twenty-eight thousand, eighty-four".

Divisors: 1 2 3 4 6 12 61 122 151 183 244 302 366 453 604 732 906 1237 1812 2474 3711 4948 7422 9211 14844 18422 27633 36844 55266 75457 110532 150914 186787 226371 301828 373574 452742 560361 747148 905484 1120722 2241444 11394007 22788014 34182021 45576028 68364042 136728084