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20473852 = 227731209
BaseRepresentation
bin100111000011…
…0011111111100
31102112011211211
41032012133330
520220130402
62010454204
7336011350
oct116063774
942464754
1020473852
1110614343
126a34364
13431b009
142a0d460
151be64d7
hex13867fc

20473852 has 12 divisors (see below), whose sum is σ = 40947760. Its totient is φ = 8774496.

The previous prime is 20473823. The next prime is 20473867. The reversal of 20473852 is 25837402.

20473852 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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 365577 + ... + 365632.

Almost surely, 220473852 is an apocalyptic number.

It is an amenable number.

20473852 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.

20473852 is a wasteful number, since it uses less digits than its factorization.

20473852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731220 (or 731218 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 20473852 is about 4524.8040841566. The cubic root of 20473852 is about 273.5687713009.

The spelling of 20473852 in words is "twenty million, four hundred seventy-three thousand, eight hundred fifty-two".

Divisors: 1 2 4 7 14 28 731209 1462418 2924836 5118463 10236926 20473852