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13812292 = 2213265621
BaseRepresentation
bin110100101100…
…001001000100
3221222201220101
4310230021010
512013443132
61212013444
7225255034
oct64541104
927881811
1013812292
11788441a
124761284
132b27b70
141b978c4
15132c7e7
hexd2c244

13812292 has 12 divisors (see below), whose sum is σ = 26030956. Its totient is φ = 6374880.

The previous prime is 13812289. The next prime is 13812301. The reversal of 13812292 is 29221831.

It can be written as a sum of positive squares in 2 ways, for example, as 2414916 + 11397376 = 1554^2 + 3376^2 .

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 13812292.

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, 132759 + ... + 132862.

Almost surely, 213812292 is an apocalyptic number.

It is an amenable number.

13812292 is a deficient number, since it is larger than the sum of its proper divisors (12218664).

13812292 is a wasteful number, since it uses less digits than its factorization.

13812292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265638 (or 265636 counting only the distinct ones).

The product of its digits is 1728, while the sum is 28.

The square root of 13812292 is about 3716.4892035360. The cubic root of 13812292 is about 239.9322262335.

The spelling of 13812292 in words is "thirteen million, eight hundred twelve thousand, two hundred ninety-two".

Divisors: 1 2 4 13 26 52 265621 531242 1062484 3453073 6906146 13812292