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7131677631 = 313279165519
BaseRepresentation
bin1101010010001010…
…01100001110111111
3200102000111202112120
412221011030032333
5104101202141011
63135400334023
7341505155031
oct65105141677
920360452476
107131677631
11302a711a61
121470474313
1389868b1c0
144b9235c51
152bb179a06
hex1a914c3bf

7131677631 has 16 divisors (see below), whose sum is σ = 10244183040. Its totient is φ = 4387085280.

The previous prime is 7131677563. The next prime is 7131677653. The reversal of 7131677631 is 1367761317.

It is not a de Polignac number, because 7131677631 - 225 = 7098123199 is a prime.

It is a super-2 number, since 2×71316776312 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7131677671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76090 + ... + 141608.

It is an arithmetic number, because the mean of its divisors is an integer number (640261440).

Almost surely, 27131677631 is an apocalyptic number.

7131677631 is a deficient number, since it is larger than the sum of its proper divisors (3112505409).

7131677631 is a wasteful number, since it uses less digits than its factorization.

7131677631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68326.

The product of its digits is 111132, while the sum is 42.

The square root of 7131677631 is about 84449.2606894815. The cubic root of 7131677631 is about 1924.8515211053.

The spelling of 7131677631 in words is "seven billion, one hundred thirty-one million, six hundred seventy-seven thousand, six hundred thirty-one".

Divisors: 1 3 13 39 2791 8373 36283 65519 108849 196557 851747 2555241 182863529 548590587 2377225877 7131677631