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20589051 = 37980431
BaseRepresentation
bin100111010001…
…0100111111011
31102202000212110
41032202213323
520232322201
62013143403
7340001250
oct116424773
942660773
1020589051
111069294a
126a8ab63
13435b592
142a3d427
151c1a6d6
hex13a29fb

20589051 has 8 divisors (see below), whose sum is σ = 31373824. Its totient is φ = 11765160.

The previous prime is 20589031. The next prime is 20589073. The reversal of 20589051 is 15098502.

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

It is not a de Polignac number, because 20589051 - 26 = 20588987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20589031) 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, 490195 + ... + 490236.

It is an arithmetic number, because the mean of its divisors is an integer number (3921728).

Almost surely, 220589051 is an apocalyptic number.

20589051 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20589051 is a deficient number, since it is larger than the sum of its proper divisors (10784773).

20589051 is an equidigital number, since it uses as much as digits as its factorization.

20589051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980441.

The product of its (nonzero) digits is 3600, while the sum is 30.

The square root of 20589051 is about 4537.5159503852. The cubic root of 20589051 is about 274.0809029927.

The spelling of 20589051 in words is "twenty million, five hundred eighty-nine thousand, fifty-one".

Divisors: 1 3 7 21 980431 2941293 6863017 20589051