Search a number
-
+
55181445083 = 514710721089
BaseRepresentation
bin110011011001000100…
…100000011111011011
312021102200121212001022
4303121010200133123
51401002422220313
641203333513055
73662306354432
oct633104403733
9167380555038
1055181445083
112144753a476
12a8401a278b
13528538a16b
142956944119
15167e6dcc08
hexcd91207db

55181445083 has 4 divisors (see below), whose sum is σ = 55192171320. Its totient is φ = 55170718848.

The previous prime is 55181445043. The next prime is 55181445089. The reversal of 55181445083 is 38054418155.

55181445083 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55181445083 - 28 = 55181444827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55181445089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5355398 + ... + 5365691.

It is an arithmetic number, because the mean of its divisors is an integer number (13798042830).

Almost surely, 255181445083 is an apocalyptic number.

55181445083 is a deficient number, since it is larger than the sum of its proper divisors (10726237).

55181445083 is a wasteful number, since it uses less digits than its factorization.

55181445083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10726236.

The product of its (nonzero) digits is 384000, while the sum is 44.

The spelling of 55181445083 in words is "fifty-five billion, one hundred eighty-one million, four hundred forty-five thousand, eighty-three".

Divisors: 1 5147 10721089 55181445083