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12893745628 = 2223140149409
BaseRepresentation
bin11000000001000011…
…01111000111011100
31020021120212010212101
430000201233013130
5202401244330003
65531233414444
7634343013061
oct140041570734
936246763771
1012893745628
115517201a25
1225ba10a424
1312a637b4aa
148a45cac68
15506e6411d
hex30086f1dc

12893745628 has 12 divisors (see below), whose sum is σ = 23545100880. Its totient is φ = 6166573952.

The previous prime is 12893745581. The next prime is 12893745637. The reversal of 12893745628 is 82654739821.

It is a super-2 number, since 2×128937456282 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70074613 + ... + 70074796.

It is an arithmetic number, because the mean of its divisors is an integer number (1962091740).

Almost surely, 212893745628 is an apocalyptic number.

It is an amenable number.

12893745628 is a deficient number, since it is larger than the sum of its proper divisors (10651355252).

12893745628 is a wasteful number, since it uses less digits than its factorization.

12893745628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140149436 (or 140149434 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 55.

The spelling of 12893745628 in words is "twelve billion, eight hundred ninety-three million, seven hundred forty-five thousand, six hundred twenty-eight".

Divisors: 1 2 4 23 46 92 140149409 280298818 560597636 3223436407 6446872814 12893745628