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136097725 = 5229187721
BaseRepresentation
bin10000001110010…
…10111110111101
3100111002110222111
420013022332331
5234320111400
621301014021
73241545241
oct1007127675
9314073874
10136097725
116a907265
12396b4311
13222720ca
141410a421
15be353ba
hex81cafbd

136097725 has 12 divisors (see below), whose sum is σ = 174581460. Its totient is φ = 105123200.

The previous prime is 136097723. The next prime is 136097777. The reversal of 136097725 is 527790631.

It can be written as a sum of positive squares in 6 ways, for example, as 12687844 + 123409881 = 3562^2 + 11109^2 .

It is not a de Polignac number, because 136097725 - 21 = 136097723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136097723) 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, 93136 + ... + 94585.

It is an arithmetic number, because the mean of its divisors is an integer number (14548455).

Almost surely, 2136097725 is an apocalyptic number.

It is an amenable number.

136097725 is a deficient number, since it is larger than the sum of its proper divisors (38483735).

136097725 is a wasteful number, since it uses less digits than its factorization.

136097725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187760 (or 187755 counting only the distinct ones).

The product of its (nonzero) digits is 79380, while the sum is 40.

The square root of 136097725 is about 11666.0929620846. The cubic root of 136097725 is about 514.3794643722.

The spelling of 136097725 in words is "one hundred thirty-six million, ninety-seven thousand, seven hundred twenty-five".

Divisors: 1 5 25 29 145 725 187721 938605 4693025 5443909 27219545 136097725