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13022892 = 2232361747
BaseRepresentation
bin110001101011…
…011010101100
3220111122001100
4301223122230
511313213032
61143043100
7215456421
oct61533254
926448040
1013022892
117395323
124440490
13290c76c
141a2dd48
15122397c
hexc6b6ac

13022892 has 18 divisors (see below), whose sum is σ = 32919068. Its totient is φ = 4340952.

The previous prime is 13022881. The next prime is 13022897. The reversal of 13022892 is 29822031.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (13022897) 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 5 ways as a sum of consecutive naturals, for example, 180838 + ... + 180909.

Almost surely, 213022892 is an apocalyptic number.

13022892 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13022892 is an abundant number, since it is smaller than the sum of its proper divisors (19896176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13022892 is a wasteful number, since it uses less digits than its factorization.

13022892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361757 (or 361752 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 13022892 is about 3608.7244283819. The cubic root of 13022892 is about 235.2714051557.

The spelling of 13022892 in words is "thirteen million, twenty-two thousand, eight hundred ninety-two".

Divisors: 1 2 3 4 6 9 12 18 36 361747 723494 1085241 1446988 2170482 3255723 4340964 6511446 13022892