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20055054355 = 572324913111
BaseRepresentation
bin10010101011010111…
…111101100000010011
31220202200010022121221
4102223113331200103
5312033043214410
613114013225511
71306661102140
oct225327754023
956680108557
1020055054355
118561612196
123a78492297
131b77c1278b
14d837373c7
157c59e34da
hex4ab5fd813

20055054355 has 16 divisors (see below), whose sum is σ = 28699905024. Its totient is φ = 13154122080.

The previous prime is 20055054353. The next prime is 20055054373. The reversal of 20055054355 is 55345055002.

It is not a de Polignac number, because 20055054355 - 21 = 20055054353 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20055054355.

It is not an unprimeable number, because it can be changed into a prime (20055054353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12455751 + ... + 12457360.

It is an arithmetic number, because the mean of its divisors is an integer number (1793744064).

Almost surely, 220055054355 is an apocalyptic number.

20055054355 is a deficient number, since it is larger than the sum of its proper divisors (8644850669).

20055054355 is a wasteful number, since it uses less digits than its factorization.

20055054355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24913146.

The product of its (nonzero) digits is 75000, while the sum is 34.

The spelling of 20055054355 in words is "twenty billion, fifty-five million, fifty-four thousand, three hundred fifty-five".

Divisors: 1 5 7 23 35 115 161 805 24913111 124565555 174391777 573001553 871958885 2865007765 4011010871 20055054355