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20863092 = 2231738591
BaseRepresentation
bin100111110010…
…1100001110100
31110020221210010
41033211201310
520320104332
62023100220
7342222225
oct117454164
943227703
1020863092
111085a828
126ba1670
134426233
142ab124c
151c719cc
hex13e5874

20863092 has 12 divisors (see below), whose sum is σ = 48680576. Its totient is φ = 6954360.

The previous prime is 20863067. The next prime is 20863099. The reversal of 20863092 is 29036802.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20863099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 869284 + ... + 869307.

Almost surely, 220863092 is an apocalyptic number.

It is an amenable number.

20863092 is an abundant number, since it is smaller than the sum of its proper divisors (27817484).

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

20863092 is a wasteful number, since it uses less digits than its factorization.

20863092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1738598 (or 1738596 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 20863092 is about 4567.6133811872. The cubic root of 20863092 is about 275.2915563460.

Adding to 20863092 its reverse (29036802), we get a palindrome (49899894).

The spelling of 20863092 in words is "twenty million, eight hundred sixty-three thousand, ninety-two".

Divisors: 1 2 3 4 6 12 1738591 3477182 5215773 6954364 10431546 20863092