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5131231355 = 513129326737
BaseRepresentation
bin1001100011101100…
…00110000001111011
3111020121022120010202
410301312012001323
541002043400410
62205100032415
7241104514115
oct46166060173
914217276122
105131231355
1121a34a0078
12bb253270b
1363a0b8993
143696a23b5
15200729ca5
hex131d8607b

5131231355 has 16 divisors (see below), whose sum is σ = 6225889824. Its totient is φ = 4059594240.

The previous prime is 5131231349. The next prime is 5131231379. The reversal of 5131231355 is 5531321315.

It is a happy number.

5131231355 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 5131231355 - 28 = 5131231099 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178547 + ... + 205283.

It is an arithmetic number, because the mean of its divisors is an integer number (389118114).

Almost surely, 25131231355 is an apocalyptic number.

5131231355 is a deficient number, since it is larger than the sum of its proper divisors (1094658469).

5131231355 is a wasteful number, since it uses less digits than its factorization.

5131231355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27166.

The product of its digits is 6750, while the sum is 29.

The square root of 5131231355 is about 71632.6137663565. The cubic root of 5131231355 is about 1724.8071035441.

The spelling of 5131231355 in words is "five billion, one hundred thirty-one million, two hundred thirty-one thousand, three hundred fifty-five".

Divisors: 1 5 131 293 655 1465 26737 38383 133685 191915 3502547 7833941 17512735 39169705 1026246271 5131231355