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20255883 = 313195119
BaseRepresentation
bin100110101000…
…1010010001011
31102010002211220
41031101102023
520141142013
62002053123
7334113024
oct115212213
942102756
1020255883
11104855aa
12694a1a3
134272a3b
142993c4b
151ba1b23
hex135148b

20255883 has 8 divisors (see below), whose sum is σ = 27033600. Its totient is φ = 13491048.

The previous prime is 20255839. The next prime is 20255897. The reversal of 20255883 is 38855202.

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

It is not a de Polignac number, because 20255883 - 29 = 20255371 is a prime.

It is a super-2 number, since 2×202558832 = 820601592219378, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (20255813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1398 + ... + 6516.

It is an arithmetic number, because the mean of its divisors is an integer number (3379200).

Almost surely, 220255883 is an apocalyptic number.

20255883 is a deficient number, since it is larger than the sum of its proper divisors (6777717).

20255883 is a wasteful number, since it uses less digits than its factorization.

20255883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6441.

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 20255883 is about 4500.6536191980. The cubic root of 20255883 is about 272.5944817282.

The spelling of 20255883 in words is "twenty million, two hundred fifty-five thousand, eight hundred eighty-three".

Divisors: 1 3 1319 3957 5119 15357 6751961 20255883