Base | Representation |
---|---|
bin | 100010111110011001… |
… | …0101011011110010001 |
3 | 21011212102011000100122 |
4 | 1011330302223132101 |
5 | 2212310133312311 |
6 | 54300523200025 |
7 | 5266151231243 |
oct | 1057462533621 |
9 | 234772130318 |
10 | 75108104081 |
11 | 2994262629a |
12 | 12681676015 |
13 | 710c7c664a |
14 | 38c71b8093 |
15 | 1e48cbd0db |
hex | 117ccab791 |
75108104081 has 4 divisors (see below), whose sum is σ = 75523066164. Its totient is φ = 74693142000.
The previous prime is 75108104069. The next prime is 75108104129. The reversal of 75108104081 is 18040180157.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 1020163600 + 74087940481 = 31940^2 + 272191^2 .
It is a cyclic number.
It is not a de Polignac number, because 75108104081 - 214 = 75108087697 is a prime.
It is a super-2 number, since 2×751081040812 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (75108104011) 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, 207480770 + ... + 207481131.
It is an arithmetic number, because the mean of its divisors is an integer number (18880766541).
Almost surely, 275108104081 is an apocalyptic number.
It is an amenable number.
75108104081 is a deficient number, since it is larger than the sum of its proper divisors (414962083).
75108104081 is a wasteful number, since it uses less digits than its factorization.
75108104081 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 414962082.
The product of its (nonzero) digits is 8960, while the sum is 35.
The spelling of 75108104081 in words is "seventy-five billion, one hundred eight million, one hundred four thousand, eighty-one".
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