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3131630932 = 226143329641
BaseRepresentation
bin1011101010101000…
…1110010101010100
322002020201100000211
42322222032111110
522403144142212
61234425415204
7140414265223
oct27252162524
98066640024
103131630932
1113677a6741
1273493a504
133aba51471
14219caccba
15134de59a7
hexbaa8e554

3131630932 has 24 divisors (see below), whose sum is σ = 5583248552. Its totient is φ = 1536537600.

The previous prime is 3131630921. The next prime is 3131630951. The reversal of 3131630932 is 2390361313.

3131630932 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 65351056 + 3066279876 = 8084^2 + 55374^2 .

It is a super-2 number, since 2×31316309322 = 19614224588518377248, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3131630894 and 3131630903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90832 + ... + 120472.

Almost surely, 23131630932 is an apocalyptic number.

It is an amenable number.

3131630932 is a deficient number, since it is larger than the sum of its proper divisors (2451617620).

3131630932 is a wasteful number, since it uses less digits than its factorization.

3131630932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30139 (or 30137 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 31.

The square root of 3131630932 is about 55960.9768678139. The cubic root of 3131630932 is about 1463.0422165800.

The spelling of 3131630932 in words is "three billion, one hundred thirty-one million, six hundred thirty thousand, nine hundred thirty-two".

Divisors: 1 2 4 61 122 244 433 866 1732 26413 29641 52826 59282 105652 118564 1808101 3616202 7232404 12834553 25669106 51338212 782907733 1565815466 3131630932