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12880812344 = 232117630813
BaseRepresentation
bin10111111111100000…
…11001100100111000
31020020200112001201212
423333300121210320
5202334441443334
65530052302252
7634125045521
oct137760314470
936220461655
1012880812344
11550a978a64
1225b5911988
1312a37a076a
148a29c1848
15505c5bece
hex2ffc19938

12880812344 has 16 divisors (see below), whose sum is σ = 24265988520. Its totient is φ = 6409882080.

The previous prime is 12880812319. The next prime is 12880812349. The reversal of 12880812344 is 44321808821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12880812349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3813719 + ... + 3817094.

Almost surely, 212880812344 is an apocalyptic number.

It is an amenable number.

12880812344 is a deficient number, since it is larger than the sum of its proper divisors (11385176176).

12880812344 is a wasteful number, since it uses less digits than its factorization.

12880812344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7631030 (or 7631026 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 41.

The spelling of 12880812344 in words is "twelve billion, eight hundred eighty million, eight hundred twelve thousand, three hundred forty-four".

Divisors: 1 2 4 8 211 422 844 1688 7630813 15261626 30523252 61046504 1610101543 3220203086 6440406172 12880812344