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136958980 = 2256847949
BaseRepresentation
bin10000010100111…
…01010000000100
3100112201020101211
420022131100010
5240030141410
621331301204
73252063214
oct1012352004
9315636354
10136958980
1170345344
1239a4a804
13224b4122
1414292244
15c05568a
hex829d404

136958980 has 12 divisors (see below), whose sum is σ = 287613900. Its totient is φ = 54783584.

The previous prime is 136958977. The next prime is 136958993. The reversal of 136958980 is 89859631.

It can be written as a sum of positive squares in 2 ways, for example, as 86378436 + 50580544 = 9294^2 + 7112^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3423955 + ... + 3423994.

It is an arithmetic number, because the mean of its divisors is an integer number (23967825).

Almost surely, 2136958980 is an apocalyptic number.

136958980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136958980 is an abundant number, since it is smaller than the sum of its proper divisors (150654920).

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

136958980 is a wasteful number, since it uses less digits than its factorization.

136958980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6847958 (or 6847956 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 49.

The square root of 136958980 is about 11702.9474919782. The cubic root of 136958980 is about 515.4622173876.

The spelling of 136958980 in words is "one hundred thirty-six million, nine hundred fifty-eight thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 6847949 13695898 27391796 34239745 68479490 136958980