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136132571720 = 23525621132833
BaseRepresentation
bin111111011001000100…
…0100011001001001000
3111000101022110011111202
41332302020203021020
54212244414243340
6142312145243332
712556330524125
oct1766210431110
9430338404452
10136132571720
1152808319022
1222472633548
13cab65797b2
146835b4774c
15381b436c15
hex1fb2223248

136132571720 has 32 divisors (see below), whose sum is σ = 306312547320. Its totient is φ = 54450493440.

The previous prime is 136132571713. The next prime is 136132571801. The reversal of 136132571720 is 27175231631.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 40971427396 + 95161144324 = 202414^2 + 308482^2 .

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, 958424 + ... + 1091256.

Almost surely, 2136132571720 is an apocalyptic number.

136132571720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136132571720 is an abundant number, since it is smaller than the sum of its proper divisors (170179975600).

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

136132571720 is a wasteful number, since it uses less digits than its factorization.

136132571720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158465 (or 158461 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 38.

The spelling of 136132571720 in words is "one hundred thirty-six billion, one hundred thirty-two million, five hundred seventy-one thousand, seven hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 25621 51242 102484 128105 132833 204968 256210 265666 512420 531332 664165 1024840 1062664 1328330 2656660 5313320 3403314293 6806628586 13613257172 17016571465 27226514344 34033142930 68066285860 136132571720