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13021292 = 2214712213
BaseRepresentation
bin110001101011…
…000001101100
3220111112212002
4301223001230
511313140132
61143031432
7215451644
oct61530154
926445762
1013021292
1173940a9
12443b578
13290bb0b
141a2d524
151223262
hexc6b06c

13021292 has 12 divisors (see below), whose sum is σ = 22813056. Its totient is φ = 6503280.

The previous prime is 13021277. The next prime is 13021331. The reversal of 13021292 is 29212031.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4778 + ... + 6990.

It is an arithmetic number, because the mean of its divisors is an integer number (1901088).

Almost surely, 213021292 is an apocalyptic number.

It is an amenable number.

13021292 is a deficient number, since it is larger than the sum of its proper divisors (9791764).

13021292 is a wasteful number, since it uses less digits than its factorization.

13021292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3688 (or 3686 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 13021292 is about 3608.5027365931. The cubic root of 13021292 is about 235.2617695677.

The spelling of 13021292 in words is "thirteen million, twenty-one thousand, two hundred ninety-two".

Divisors: 1 2 4 1471 2213 2942 4426 5884 8852 3255323 6510646 13021292