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135880407 = 32131161371
BaseRepresentation
bin10000001100101…
…01111011010111
3100110200102212200
420012111323113
5234241133112
621252215543
73236651535
oct1006257327
9313612780
10135880407
116a778a63
123960a5b3
13221c7210
1414091155
15bde0cdc
hex8195ed7

135880407 has 12 divisors (see below), whose sum is σ = 211369704. Its totient is φ = 83618640.

The previous prime is 135880397. The next prime is 135880427. The reversal of 135880407 is 704088531.

It is not a de Polignac number, because 135880407 - 27 = 135880279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135880427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 580569 + ... + 580802.

It is an arithmetic number, because the mean of its divisors is an integer number (17614142).

Almost surely, 2135880407 is an apocalyptic number.

135880407 is a deficient number, since it is larger than the sum of its proper divisors (75489297).

135880407 is a wasteful number, since it uses less digits than its factorization.

135880407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1161390 (or 1161387 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 135880407 is about 11656.7751543898. The cubic root of 135880407 is about 514.1055350631.

The spelling of 135880407 in words is "one hundred thirty-five million, eight hundred eighty thousand, four hundred seven".

Divisors: 1 3 9 13 39 117 1161371 3484113 10452339 15097823 45293469 135880407