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136311472 = 24111940763
BaseRepresentation
bin10000001111111…
…11001010110000
3100111111100012001
420013333022300
5234343431342
621305343344
73243425353
oct1007771260
9314440161
10136311472
116aa42910
1239797b54
132231849b
141416429a
15be788b7
hex81ff2b0

136311472 has 40 divisors (see below), whose sum is σ = 303284160. Its totient is φ = 58697280.

The previous prime is 136311467. The next prime is 136311479. The reversal of 136311472 is 274113631.

136311472 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 136311472.

It is not an unprimeable number, because it can be changed into a prime (136311479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17038 + ... + 23725.

It is an arithmetic number, because the mean of its divisors is an integer number (7582104).

Almost surely, 2136311472 is an apocalyptic number.

It is an amenable number.

136311472 is an abundant number, since it is smaller than the sum of its proper divisors (166972688).

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

136311472 is a wasteful number, since it uses less digits than its factorization.

136311472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40801 (or 40795 counting only the distinct ones).

The product of its digits is 3024, while the sum is 28.

The square root of 136311472 is about 11675.2504041669. The cubic root of 136311472 is about 514.6486081284.

The spelling of 136311472 in words is "one hundred thirty-six million, three hundred eleven thousand, four hundred seventy-two".

Divisors: 1 2 4 8 11 16 19 22 38 44 76 88 152 176 209 304 418 836 1672 3344 40763 81526 163052 326104 448393 652208 774497 896786 1548994 1793572 3097988 3587144 6195976 7174288 8519467 12391952 17038934 34077868 68155736 136311472