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12831969962 = 272130938469
BaseRepresentation
bin10111111001101100…
…00101001010101010
31020010021121121120202
423330312011022222
5202234441014322
65521145352202
7632662642100
oct137466051252
936107547522
1012831969962
115495348a59
1225a1498662
13129662c246
1489a309c70
15501810292
hex2fcd852aa

12831969962 has 12 divisors (see below), whose sum is σ = 22390478370. Its totient is φ = 5499415656.

The previous prime is 12831969961. The next prime is 12831970069. The reversal of 12831969962 is 26996913821.

It can be written as a sum of positive squares in only one way, i.e., 12775554841 + 56415121 = 113029^2 + 7511^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12831969898 and 12831969907.

It is not an unprimeable number, because it can be changed into a prime (12831969961) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 65469137 + ... + 65469332.

Almost surely, 212831969962 is an apocalyptic number.

12831969962 is a deficient number, since it is larger than the sum of its proper divisors (9558508408).

12831969962 is a wasteful number, since it uses less digits than its factorization.

12831969962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130938485 (or 130938478 counting only the distinct ones).

The product of its digits is 2519424, while the sum is 56.

The spelling of 12831969962 in words is "twelve billion, eight hundred thirty-one million, nine hundred sixty-nine thousand, nine hundred sixty-two".

Divisors: 1 2 7 14 49 98 130938469 261876938 916569283 1833138566 6415984981 12831969962