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20796893 = 131998039
BaseRepresentation
bin100111101010…
…1010111011101
31110010120222022
41033111113131
520311000033
62021425525
7341525225
oct117252735
943116868
1020796893
1110815017
126b6b2a5
134402070
142a95085
151c5c098
hex13d55dd

20796893 has 8 divisors (see below), whose sum is σ = 22512000. Its totient is φ = 19098288.

The previous prime is 20796871. The next prime is 20796901. The reversal of 20796893 is 39869702.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20796893 - 218 = 20534749 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20796493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1433 + ... + 6606.

It is an arithmetic number, because the mean of its divisors is an integer number (2814000).

Almost surely, 220796893 is an apocalyptic number.

It is an amenable number.

20796893 is a deficient number, since it is larger than the sum of its proper divisors (1715107).

20796893 is a wasteful number, since it uses less digits than its factorization.

20796893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8251.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 20796893 is about 4560.3610602670. The cubic root of 20796893 is about 275.0000793388. Note that the first 4 decimals are identical.

The spelling of 20796893 in words is "twenty million, seven hundred ninety-six thousand, eight hundred ninety-three".

Divisors: 1 13 199 2587 8039 104507 1599761 20796893