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12893042 = 225392
BaseRepresentation
bin110001001011…
…101101110010
3220021000221002
4301023231302
511300034132
61140202002
7214406021
oct61135562
926230832
1012893042
117306808
124399302
132895626
1419d88b8
1511ea262
hexc4bb72

12893042 has 6 divisors (see below), whose sum is σ = 19347183. Its totient is φ = 6443982.

The previous prime is 12893029. The next prime is 12893047. The reversal of 12893042 is 24039821.

It can be written as a sum of positive squares in only one way, i.e., 6446521 + 6446521 = 2539^2 + 2539^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=2539.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12892996 and 12893014.

It is not an unprimeable number, because it can be changed into a prime (12893047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 3809 + ... + 6347.

Almost surely, 212893042 is an apocalyptic number.

12893042 is a deficient number, since it is larger than the sum of its proper divisors (6454141).

12893042 is an frugal number, since it uses more digits than its factorization.

12893042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5080 (or 2541 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 12893042 is about 3590.6882348653. The cubic root of 12893042 is about 234.4868355638.

The spelling of 12893042 in words is "twelve million, eight hundred ninety-three thousand, forty-two".

Divisors: 1 2 2539 5078 6446521 12893042