Search a number
-
+
105254824901 = 467322524037
BaseRepresentation
bin110001000000110101…
…1010010101111000101
3101001200101112002212012
41202001223102233011
53211030213344101
6120204200104005
710414212151502
oct1420153225705
9331611462765
10105254824901
11407026718a6
1218495765005
139c053acba5
145146cd64a9
152b10729bbb
hex1881ad2bc5

105254824901 has 4 divisors (see below), whose sum is σ = 105277353612. Its totient is φ = 105232296192.

The previous prime is 105254824867. The next prime is 105254824903. The reversal of 105254824901 is 109428452501.

It is a Cunningham number, because it is equal to 3244302+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 109428452501 = 1019107388079.

It can be written as a sum of positive squares in 2 ways, for example, as 100886275876 + 4368549025 = 317626^2 + 66095^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-105254824901 is a prime.

It is a super-2 number, since 2×1052548249012 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105254824903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11257346 + ... + 11266691.

It is an arithmetic number, because the mean of its divisors is an integer number (26319338403).

Almost surely, 2105254824901 is an apocalyptic number.

It is an amenable number.

105254824901 is a deficient number, since it is larger than the sum of its proper divisors (22528711).

105254824901 is an equidigital number, since it uses as much as digits as its factorization.

105254824901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22528710.

The product of its (nonzero) digits is 115200, while the sum is 41.

The spelling of 105254824901 in words is "one hundred five billion, two hundred fifty-four million, eight hundred twenty-four thousand, nine hundred one".

Divisors: 1 4673 22524037 105254824901