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136393580 = 2256819679
BaseRepresentation
bin10000010000100…
…11001101101100
3100111122111211002
420020103031230
5234404043310
621311215432
73244216631
oct1010231554
9314574732
10136393580
116aa99574
1239817578
132234697b
1414186188
15be92da5
hex821336c

136393580 has 12 divisors (see below), whose sum is σ = 286426560. Its totient is φ = 54557424.

The previous prime is 136393561. The next prime is 136393589. The reversal of 136393580 is 85393631.

It is not an unprimeable number, because it can be changed into a prime (136393589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3409820 + ... + 3409859.

It is an arithmetic number, because the mean of its divisors is an integer number (23868880).

Almost surely, 2136393580 is an apocalyptic number.

136393580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136393580 is an abundant number, since it is smaller than the sum of its proper divisors (150032980).

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

136393580 is a wasteful number, since it uses less digits than its factorization.

136393580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6819688 (or 6819686 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 38.

The square root of 136393580 is about 11678.7662019582. The cubic root of 136393580 is about 514.7519212382.

The spelling of 136393580 in words is "one hundred thirty-six million, three hundred ninety-three thousand, five hundred eighty".

Divisors: 1 2 4 5 10 20 6819679 13639358 27278716 34098395 68196790 136393580