Base | Representation |
---|---|
bin | 11110010010101… |
… | …01010110110101 |
3 | 122201010212112210 |
4 | 33021111112311 |
5 | 1010022330023 |
6 | 41114204033 |
7 | 6203566641 |
oct | 1711252665 |
9 | 581125483 |
10 | 254105013 |
11 | 120487948 |
12 | 71123619 |
13 | 4084bcc6 |
14 | 25a67c21 |
15 | 17495593 |
hex | f2555b5 |
254105013 has 4 divisors (see below), whose sum is σ = 338806688. Its totient is φ = 169403340.
The previous prime is 254105009. The next prime is 254105087. The reversal of 254105013 is 310501452.
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 254105013 - 22 = 254105009 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 (254005013) 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, 42350833 + ... + 42350838.
It is an arithmetic number, because the mean of its divisors is an integer number (84701672).
Almost surely, 2254105013 is an apocalyptic number.
It is an amenable number.
254105013 is a deficient number, since it is larger than the sum of its proper divisors (84701675).
254105013 is an equidigital number, since it uses as much as digits as its factorization.
254105013 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 84701674.
The product of its (nonzero) digits is 600, while the sum is 21.
The square root of 254105013 is about 15940.6716608805. The cubic root of 254105013 is about 633.3898180154.
Adding to 254105013 its reverse (310501452), we get a palindrome (564606465).
The spelling of 254105013 in words is "two hundred fifty-four million, one hundred five thousand, thirteen".
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