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12896290 = 2511117239
BaseRepresentation
bin110001001100…
…100000100010
3220021012101101
4301030200202
511300140130
61140225014
7214421341
oct61144042
926235341
1012896290
1173091a0
12439b16a
132896c54
1419d9b58
1511eb1ca
hexc4c822

12896290 has 16 divisors (see below), whose sum is σ = 25323840. Its totient is φ = 4689520.

The previous prime is 12896267. The next prime is 12896293. The reversal of 12896290 is 9269821.

It is not an unprimeable number, because it can be changed into a prime (12896293) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58510 + ... + 58729.

It is an arithmetic number, because the mean of its divisors is an integer number (1582740).

Almost surely, 212896290 is an apocalyptic number.

12896290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12896290 is a deficient number, since it is larger than the sum of its proper divisors (12427550).

12896290 is a wasteful number, since it uses less digits than its factorization.

12896290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117257.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 12896290 is about 3591.1404873661. The cubic root of 12896290 is about 234.5065244600.

The spelling of 12896290 in words is "twelve million, eight hundred ninety-six thousand, two hundred ninety".

Divisors: 1 2 5 10 11 22 55 110 117239 234478 586195 1172390 1289629 2579258 6448145 12896290