Base | Representation |
---|---|
bin | 1100100001111… |
… | …10111001110111 |
3 | 21022210102000121 |
4 | 12100332321313 |
5 | 203402142010 |
6 | 14232552411 |
7 | 2414315320 |
oct | 620767167 |
9 | 238712017 |
10 | 105115255 |
11 | 54375713 |
12 | 2b252707 |
13 | 18a14b9b |
14 | dd63447 |
15 | 93653da |
hex | 643ee77 |
105115255 has 16 divisors (see below), whose sum is σ = 146136384. Its totient is φ = 71089920.
The previous prime is 105115253. The next prime is 105115259. The reversal of 105115255 is 552511501.
It is not a de Polignac number, because 105115255 - 21 = 105115253 is a prime.
It is a super-2 number, since 2×1051152552 = 22098433667430050, which 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 (105115253) 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 15 ways as a sum of consecutive naturals, for example, 18016 + ... + 23125.
It is an arithmetic number, because the mean of its divisors is an integer number (9133524).
Almost surely, 2105115255 is an apocalyptic number.
105115255 is a deficient number, since it is larger than the sum of its proper divisors (41021129).
105115255 is an equidigital number, since it uses as much as digits as its factorization.
105115255 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 41226.
The product of its (nonzero) digits is 1250, while the sum is 25.
The square root of 105115255 is about 10252.5730916683. The cubic root of 105115255 is about 471.9419500930.
Adding to 105115255 its reverse (552511501), we get a palindrome (657626756).
It can be divided in two parts, 10511 and 5255, that multiplied together give a triangular number (55235305 = T10510).
The spelling of 105115255 in words is "one hundred five million, one hundred fifteen thousand, two hundred fifty-five".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.115 sec. • engine limits •