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12780673822 = 272130415039
BaseRepresentation
bin10111110011100100…
…11001101100011110
31012222201002111111201
423321302121230132
5202133323030242
65512114110114
7631500635500
oct137162315436
935881074451
1012780673822
1154693a2454
12258827b33a
131288b0bbb7
14893595d70
154ec07b4b7
hex2f9c99b1e

12780673822 has 12 divisors (see below), whose sum is σ = 22300971840. Its totient is φ = 5477431596.

The previous prime is 12780673819. The next prime is 12780673859. The reversal of 12780673822 is 22837608721.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 65207422 + ... + 65207617.

It is an arithmetic number, because the mean of its divisors is an integer number (1858414320).

Almost surely, 212780673822 is an apocalyptic number.

12780673822 is a deficient number, since it is larger than the sum of its proper divisors (9520298018).

12780673822 is a wasteful number, since it uses less digits than its factorization.

12780673822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130415055 (or 130415048 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 46.

The spelling of 12780673822 in words is "twelve billion, seven hundred eighty million, six hundred seventy-three thousand, eight hundred twenty-two".

Divisors: 1 2 7 14 49 98 130415039 260830078 912905273 1825810546 6390336911 12780673822