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20860924 = 227745033
BaseRepresentation
bin100111110010…
…0111111111100
31110020211210211
41033210333330
520320022144
62023042204
7342213010
oct117447774
943224724
1020860924
1110859137
126ba0364
134425256
142ab0540
151c71034
hex13e4ffc

20860924 has 12 divisors (see below), whose sum is σ = 41721904. Its totient is φ = 8940384.

The previous prime is 20860913. The next prime is 20860943. The reversal of 20860924 is 42906802.

20860924 is an admirable number.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 372489 + ... + 372544.

Almost surely, 220860924 is an apocalyptic number.

It is an amenable number.

20860924 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20860924 is a wasteful number, since it uses less digits than its factorization.

20860924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745044 (or 745042 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 20860924 is about 4567.3760519581. The cubic root of 20860924 is about 275.2820203231.

The spelling of 20860924 in words is "twenty million, eight hundred sixty thousand, nine hundred twenty-four".

Divisors: 1 2 4 7 14 28 745033 1490066 2980132 5215231 10430462 20860924