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135913079 = 1773109519
BaseRepresentation
bin10000001100111…
…01111001110111
3100110202002200202
420012131321313
5234243204304
621253031115
73240146021
oct1006357167
9313662622
10135913079
116a7a0565
123962549b
1322209053
141409d011
15bdea81e
hex819de77

135913079 has 8 divisors (see below), whose sum is σ = 145880640. Its totient is φ = 126164736.

The previous prime is 135913069. The next prime is 135913087. The reversal of 135913079 is 970319531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-135913079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135913009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53519 + ... + 56000.

It is an arithmetic number, because the mean of its divisors is an integer number (18235080).

Almost surely, 2135913079 is an apocalyptic number.

135913079 is a deficient number, since it is larger than the sum of its proper divisors (9967561).

135913079 is a wasteful number, since it uses less digits than its factorization.

135913079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109609.

The product of its (nonzero) digits is 25515, while the sum is 38.

The square root of 135913079 is about 11658.1764869125. The cubic root of 135913079 is about 514.1467367598.

The spelling of 135913079 in words is "one hundred thirty-five million, nine hundred thirteen thousand, seventy-nine".

Divisors: 1 17 73 1241 109519 1861823 7994887 135913079