Search a number
-
+
55160383917 = 318386794639
BaseRepresentation
bin110011010111110100…
…001010100110101101
312021101012222211120010
4303113310022212231
51400432024241132
641201302243433
73661632345552
oct632764124655
9167335884503
1055160383917
1121436664951
12a835126579
135280bc4a32
142953c20a29
15167c92c6cc
hexcd7d0a9ad

55160383917 has 4 divisors (see below), whose sum is σ = 73547178560. Its totient is φ = 36773589276.

The previous prime is 55160383909. The next prime is 55160383981. The reversal of 55160383917 is 71938306155.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 55160383917 - 23 = 55160383909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55160383907) 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, 9193397317 + ... + 9193397322.

It is an arithmetic number, because the mean of its divisors is an integer number (18386794640).

Almost surely, 255160383917 is an apocalyptic number.

It is an amenable number.

55160383917 is a deficient number, since it is larger than the sum of its proper divisors (18386794643).

55160383917 is a wasteful number, since it uses less digits than its factorization.

55160383917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18386794642.

The product of its (nonzero) digits is 680400, while the sum is 48.

The spelling of 55160383917 in words is "fifty-five billion, one hundred sixty million, three hundred eighty-three thousand, nine hundred seventeen".

Divisors: 1 3 18386794639 55160383917