Search a number
-
+
105886505825 = 5210494037617
BaseRepresentation
bin110001010011101010…
…0111101101101100001
3101010022102010211011222
41202213110331231201
53213323421141300
6120351003144425
710435652310032
oct1424724755541
9333272124158
10105886505825
11409a7199051
1218631215115
139ca621b899
1451a6b68a89
152b4ae04785
hex18a753db61

105886505825 has 12 divisors (see below), whose sum is σ = 131424465900. Its totient is φ = 84628431360.

The previous prime is 105886505789. The next prime is 105886505831. The reversal of 105886505825 is 528505688501.

It can be written as a sum of positive squares in 6 ways, for example, as 15068053504 + 90818452321 = 122752^2 + 301361^2 .

It is not a de Polignac number, because 105886505825 - 214 = 105886489441 is a prime.

It is a super-2 number, since 2×1058865058252 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1992584 + ... + 2045033.

It is an arithmetic number, because the mean of its divisors is an integer number (10952038825).

Almost surely, 2105886505825 is an apocalyptic number.

It is an amenable number.

105886505825 is a deficient number, since it is larger than the sum of its proper divisors (25537960075).

105886505825 is a wasteful number, since it uses less digits than its factorization.

105886505825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4038676 (or 4038671 counting only the distinct ones).

The product of its (nonzero) digits is 3840000, while the sum is 53.

The spelling of 105886505825 in words is "one hundred five billion, eight hundred eighty-six million, five hundred five thousand, eight hundred twenty-five".

Divisors: 1 5 25 1049 5245 26225 4037617 20188085 100940425 4235460233 21177301165 105886505825