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135807930 = 23251508977
BaseRepresentation
bin10000001100001…
…00001110111010
3100110112202110100
420012010032322
5234231323210
621250500230
73236230326
oct1006041672
9313482410
10135807930
116a729565
1239594676
13221a022b
1414072986
15bdc95c0
hex81843ba

135807930 has 24 divisors (see below), whose sum is σ = 353100852. Its totient is φ = 36215424.

The previous prime is 135807923. The next prime is 135807937. The reversal of 135807930 is 39708531.

135807930 is a `hidden beast` number, since 1 + 3 + 580 + 79 + 3 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (135807923) and next prime (135807937).

It can be written as a sum of positive squares in 2 ways, for example, as 123676641 + 12131289 = 11121^2 + 3483^2 .

It is not an unprimeable number, because it can be changed into a prime (135807937) 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 11 ways as a sum of consecutive naturals, for example, 754399 + ... + 754578.

Almost surely, 2135807930 is an apocalyptic number.

135807930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135807930 is an abundant number, since it is smaller than the sum of its proper divisors (217292922).

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

135807930 is a wasteful number, since it uses less digits than its factorization.

135807930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1508990 (or 1508987 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 135807930 is about 11653.6659468169. The cubic root of 135807930 is about 514.0141128718.

The spelling of 135807930 in words is "one hundred thirty-five million, eight hundred seven thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 1508977 3017954 4526931 7544885 9053862 13580793 15089770 22634655 27161586 45269310 67903965 135807930