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12831964 = 223207991
BaseRepresentation
bin110000111100…
…110011011100
3220010221010221
4300330303130
511241110324
61135011124
7214032655
oct60746334
926127127
1012831964
117274932
124369aa4
1328738a2
1419c052c
1511d70e4
hexc3ccdc

12831964 has 6 divisors (see below), whose sum is σ = 22455944. Its totient is φ = 6415980.

The previous prime is 12831961. The next prime is 12831967. The reversal of 12831964 is 46913821.

It is an interprime number because it is at equal distance from previous prime (12831961) and next prime (12831967).

It is a super-3 number, since 3×128319643 (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12831961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1603992 + ... + 1603999.

Almost surely, 212831964 is an apocalyptic number.

It is an amenable number.

12831964 is a deficient number, since it is larger than the sum of its proper divisors (9623980).

12831964 is a wasteful number, since it uses less digits than its factorization.

12831964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3207995 (or 3207993 counting only the distinct ones).

The product of its digits is 10368, while the sum is 34.

The square root of 12831964 is about 3582.1730834788. The cubic root of 12831964 is about 234.1159724159.

The spelling of 12831964 in words is "twelve million, eight hundred thirty-one thousand, nine hundred sixty-four".

Divisors: 1 2 4 3207991 6415982 12831964