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20166792 = 2338231021
BaseRepresentation
bin100110011101…
…1100010001000
31101221120122020
41030323202020
520130314132
62000124440
7333262212
oct114734210
941846566
1020166792
1110424678
126906720
134241319
14296d5b2
151b8552c
hex133b888

20166792 has 32 divisors (see below), whose sum is σ = 50527680. Its totient is φ = 6707520.

The previous prime is 20166781. The next prime is 20166821. The reversal of 20166792 is 29766102.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 19242 + ... + 20262.

It is an arithmetic number, because the mean of its divisors is an integer number (1578990).

Almost surely, 220166792 is an apocalyptic number.

It is an amenable number.

20166792 is an abundant number, since it is smaller than the sum of its proper divisors (30360888).

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

20166792 is a wasteful number, since it uses less digits than its factorization.

20166792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1853 (or 1849 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 20166792 is about 4490.7451497496. The cubic root of 20166792 is about 272.1942456201.

The spelling of 20166792 in words is "twenty million, one hundred sixty-six thousand, seven hundred ninety-two".

Divisors: 1 2 3 4 6 8 12 24 823 1021 1646 2042 2469 3063 3292 4084 4938 6126 6584 8168 9876 12252 19752 24504 840283 1680566 2520849 3361132 5041698 6722264 10083396 20166792