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12240631242 = 2327953101939
BaseRepresentation
bin10110110011001100…
…10011010111001010
31011121001220111100200
423121212103113022
5200032100144432
65342343113030
7612222435360
oct133146232712
934531814320
1012240631242
115211576474
122457442776
131200c76a88
14841979630
154b9953a7c
hex2d99935ca

12240631242 has 48 divisors (see below), whose sum is σ = 30342237120. Its totient is φ = 3493619136.

The previous prime is 12240631213. The next prime is 12240631243. The reversal of 12240631242 is 24213604221.

12240631242 is a `hidden beast` number, since 1 + 2 + 2 + 4 + 0 + 631 + 24 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (12240631243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69109 + ... + 171047.

It is an arithmetic number, because the mean of its divisors is an integer number (632129940).

Almost surely, 212240631242 is an apocalyptic number.

12240631242 is an abundant number, since it is smaller than the sum of its proper divisors (18101605878).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12240631242 is a wasteful number, since it uses less digits than its factorization.

12240631242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102907 (or 102904 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The spelling of 12240631242 in words is "twelve billion, two hundred forty million, six hundred thirty-one thousand, two hundred forty-two".

Divisors: 1 2 3 6 7 9 14 18 21 42 63 126 953 1906 2859 5718 6671 8577 13342 17154 20013 40026 60039 101939 120078 203878 305817 611634 713573 917451 1427146 1834902 2140719 4281438 6422157 12844314 97147867 194295734 291443601 582887202 680035069 874330803 1360070138 1748661606 2040105207 4080210414 6120315621 12240631242