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12782302672 = 247111252027
BaseRepresentation
bin10111110011110001…
…00111010111010000
31012222211011020212111
423321320213113100
5202134232141142
65512213035104
7631520531356
oct137170472720
935884136774
1012782302672
11546a305207
122588925a94
13128925c409
1489389b7d6
154ec29de17
hex2f9e275d0

12782302672 has 20 divisors (see below), whose sum is σ = 25114526496. Its totient is φ = 6301134560.

The previous prime is 12782302667. The next prime is 12782302681. The reversal of 12782302672 is 27620328721.

It is a congruent number.

It is an unprimeable number.

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, 5624878 + ... + 5627149.

Almost surely, 212782302672 is an apocalyptic number.

It is an amenable number.

12782302672 is a deficient number, since it is larger than the sum of its proper divisors (12332223824).

12782302672 is a wasteful number, since it uses less digits than its factorization.

12782302672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11252106 (or 11252100 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 40.

The spelling of 12782302672 in words is "twelve billion, seven hundred eighty-two million, three hundred two thousand, six hundred seventy-two".

Divisors: 1 2 4 8 16 71 142 284 568 1136 11252027 22504054 45008108 90016216 180032432 798893917 1597787834 3195575668 6391151336 12782302672