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20838112 = 25651191
BaseRepresentation
bin100111101111…
…1011011100000
31110012200111221
41033133123200
520313304422
62022344424
7342056341
oct117373340
943180457
1020838112
1110842a89
126b8b114
134417a59
142aa60c8
151c693c7
hex13df6e0

20838112 has 12 divisors (see below), whose sum is σ = 41025096. Its totient is φ = 10419040.

The previous prime is 20838109. The next prime is 20838113. The reversal of 20838112 is 21183802.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20838113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325564 + ... + 325627.

It is an arithmetic number, because the mean of its divisors is an integer number (3418758).

Almost surely, 220838112 is an apocalyptic number.

It is an amenable number.

20838112 is a deficient number, since it is larger than the sum of its proper divisors (20186984).

20838112 is an equidigital number, since it uses as much as digits as its factorization.

20838112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651201 (or 651193 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 20838112 is about 4564.8780925672. The cubic root of 20838112 is about 275.1816408791.

The spelling of 20838112 in words is "twenty million, eight hundred thirty-eight thousand, one hundred twelve".

Divisors: 1 2 4 8 16 32 651191 1302382 2604764 5209528 10419056 20838112