Search a number
-
+
105308555 = 51110191879
BaseRepresentation
bin1100100011011…
…10000110001011
321100011020011212
412101232012023
5203424333210
614241043335
72416052012
oct621560613
9240136155
10105308555
1154497970
122b32654b
1318a81b71
14ddb3a79
1593a2805
hex646e18b

105308555 has 16 divisors (see below), whose sum is σ = 138067200. Its totient is φ = 76472160.

The previous prime is 105308521. The next prime is 105308597. The reversal of 105308555 is 555803501.

It is not a de Polignac number, because 105308555 - 214 = 105292171 is a prime.

It is a super-2 number, since 2×1053085552 = 22179783512376050, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55106 + ... + 56984.

It is an arithmetic number, because the mean of its divisors is an integer number (8629200).

Almost surely, 2105308555 is an apocalyptic number.

105308555 is a deficient number, since it is larger than the sum of its proper divisors (32758645).

105308555 is a wasteful number, since it uses less digits than its factorization.

105308555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2914.

The product of its (nonzero) digits is 15000, while the sum is 32.

The square root of 105308555 is about 10261.9956636124. The cubic root of 105308555 is about 472.2310629538.

The spelling of 105308555 in words is "one hundred five million, three hundred eight thousand, five hundred fifty-five".

Divisors: 1 5 11 55 1019 1879 5095 9395 11209 20669 56045 103345 1914701 9573505 21061711 105308555