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20228192 = 255311927
BaseRepresentation
bin100110100101…
…0100001100000
31102001200212022
41031022201200
520134300232
62001321012
7333636215
oct115124140
942050768
1020228192
1110466816
126936168
13426325a
142987b0c
151b98812
hex134a860

20228192 has 24 divisors (see below), whose sum is σ = 40579056. Its totient is φ = 9922432.

The previous prime is 20228177. The next prime is 20228203. The reversal of 20228192 is 29182202.

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, 4268 + ... + 7659.

It is an arithmetic number, because the mean of its divisors is an integer number (1690794).

Almost surely, 220228192 is an apocalyptic number.

It is an amenable number.

20228192 is an abundant number, since it is smaller than the sum of its proper divisors (20350864).

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

20228192 is a wasteful number, since it uses less digits than its factorization.

20228192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11990 (or 11982 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 20228192 is about 4497.5762361521. The cubic root of 20228192 is about 272.4702074434.

The spelling of 20228192 in words is "twenty million, two hundred twenty-eight thousand, one hundred ninety-two".

Divisors: 1 2 4 8 16 32 53 106 212 424 848 1696 11927 23854 47708 95416 190832 381664 632131 1264262 2528524 5057048 10114096 20228192