Search a number
-
+
105525424255 = 521105084851
BaseRepresentation
bin110001001000111001…
…1100011000001111111
3101002101020200222101111
41202101303203001333
53212104002034010
6120251104022451
710424006210056
oct1422163430177
9332336628344
10105525424255
1140831395129
1218550301a27
139c49485754
145170c1539d
152b2937c58a
hex1891ce307f

105525424255 has 4 divisors (see below), whose sum is σ = 126630509112. Its totient is φ = 84420339400.

The previous prime is 105525424223. The next prime is 105525424309. The reversal of 105525424255 is 552424525501.

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

It is not a de Polignac number, because 105525424255 - 25 = 105525424223 is a prime.

It is a super-2 number, since 2×1055254242552 (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 10552542421 + ... + 10552542430.

It is an arithmetic number, because the mean of its divisors is an integer number (31657627278).

Almost surely, 2105525424255 is an apocalyptic number.

105525424255 is a deficient number, since it is larger than the sum of its proper divisors (21105084857).

105525424255 is an equidigital number, since it uses as much as digits as its factorization.

105525424255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21105084856.

The product of its (nonzero) digits is 400000, while the sum is 40.

Adding to 105525424255 its reverse (552424525501), we get a palindrome (657949949756).

The spelling of 105525424255 in words is "one hundred five billion, five hundred twenty-five million, four hundred twenty-four thousand, two hundred fifty-five".

Divisors: 1 5 21105084851 105525424255