Base | Representation |
---|---|
bin | 100010111110010111… |
… | …1110001010101110001 |
3 | 21011212100201021112121 |
4 | 1011330233301111301 |
5 | 2212304434413211 |
6 | 54300454554241 |
7 | 5266141604431 |
oct | 1057457612561 |
9 | 234770637477 |
10 | 75107341681 |
11 | 29942155509 |
12 | 12681368981 |
13 | 710c5ba618 |
14 | 38c705a2c1 |
15 | 1e48bbc271 |
hex | 117cbf1571 |
75107341681 has 2 divisors, whose sum is σ = 75107341682. Its totient is φ = 75107341680.
The previous prime is 75107341679. The next prime is 75107341697. The reversal of 75107341681 is 18614370157.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 64726992225 + 10380349456 = 254415^2 + 101884^2 .
It is a cyclic number.
It is not a de Polignac number, because 75107341681 - 21 = 75107341679 is a prime.
It is a super-2 number, since 2×751073416812 (a number of 23 digits) contains 22 as substring.
Together with 75107341679, it forms a pair of twin primes.
It is not a weakly prime, because it can be changed into another prime (75107341651) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37553670840 + 37553670841.
It is an arithmetic number, because the mean of its divisors is an integer number (37553670841).
Almost surely, 275107341681 is an apocalyptic number.
It is an amenable number.
75107341681 is a deficient number, since it is larger than the sum of its proper divisors (1).
75107341681 is an equidigital number, since it uses as much as digits as its factorization.
75107341681 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 141120, while the sum is 43.
The spelling of 75107341681 in words is "seventy-five billion, one hundred seven million, three hundred forty-one thousand, six hundred eighty-one".
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