Base | Representation |
---|---|
bin | 1000111111110… |
… | …00110011111111 |
3 | 12021000011200021 |
4 | 10133320303333 |
5 | 123304434111 |
6 | 11253313011 |
7 | 1604316262 |
oct | 437706377 |
9 | 167004607 |
10 | 75468031 |
11 | 39666281 |
12 | 21335767 |
13 | 12834652 |
14 | a046cd9 |
15 | 695ad71 |
hex | 47f8cff |
75468031 has 2 divisors, whose sum is σ = 75468032. Its totient is φ = 75468030.
The previous prime is 75468017. The next prime is 75468059. The reversal of 75468031 is 13086457.
It is a weak prime.
It is an emirp because it is prime and its reverse (13086457) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 75468031 - 29 = 75467519 is a prime.
It is a super-2 number, since 2×754680312 = 11390847406033922, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (75468061) by changing a digit.
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 as a sum of consecutive naturals, namely, 37734015 + 37734016.
It is an arithmetic number, because the mean of its divisors is an integer number (37734016).
Almost surely, 275468031 is an apocalyptic number.
75468031 is a deficient number, since it is larger than the sum of its proper divisors (1).
75468031 is an equidigital number, since it uses as much as digits as its factorization.
75468031 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 20160, while the sum is 34.
The square root of 75468031 is about 8687.2337944826. The cubic root of 75468031 is about 422.5917422707.
The spelling of 75468031 in words is "seventy-five million, four hundred sixty-eight thousand, thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.068 sec. • engine limits •