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12437959982 = 27318131137
BaseRepresentation
bin10111001010101110…
…00011010100101110
31012002211012211111112
423211113003110232
5200433104204412
65414112352022
7620136626000
oct134527032456
935084184445
1012437959982
1153029a4478
1224b1545612
131232b07246
1485dc64370
154cbe31722
hex2e55c352e

12437959982 has 16 divisors (see below), whose sum is σ = 21757365600. Its totient is φ = 5330553984.

The previous prime is 12437959943. The next prime is 12437959999. The reversal of 12437959982 is 28995973421.

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, 9064883 + ... + 9066254.

It is an arithmetic number, because the mean of its divisors is an integer number (1359835350).

Almost surely, 212437959982 is an apocalyptic number.

12437959982 is a deficient number, since it is larger than the sum of its proper divisors (9319405618).

12437959982 is an equidigital number, since it uses as much as digits as its factorization.

12437959982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18131160 (or 18131146 counting only the distinct ones).

The product of its digits is 9797760, while the sum is 59.

The spelling of 12437959982 in words is "twelve billion, four hundred thirty-seven million, nine hundred fifty-nine thousand, nine hundred eighty-two".

Divisors: 1 2 7 14 49 98 343 686 18131137 36262274 126917959 253835918 888425713 1776851426 6218979991 12437959982