Base | Representation |
---|---|
bin | 1011011110100101… |
… | …1001010011001001 |
3 | 21221201121012000021 |
4 | 2313221121103021 |
5 | 22302224111212 |
6 | 1225422140441 |
7 | 136231523344 |
oct | 26751312311 |
9 | 7851535007 |
10 | 3081082057 |
11 | 1341210609 |
12 | 71ba21721 |
13 | 3a14332a1 |
14 | 2132b145b |
15 | 13075d307 |
hex | b7a594c9 |
3081082057 has 4 divisors (see below), whose sum is σ = 3262322196. Its totient is φ = 2899841920.
The previous prime is 3081082051. The next prime is 3081082097. The reversal of 3081082057 is 7502801803.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7502801803 = 7 ⋅1071828829.
It can be written as a sum of positive squares in 2 ways, for example, as 2798304201 + 282777856 = 52899^2 + 16816^2 .
It is a cyclic number.
It is not a de Polignac number, because 3081082057 - 23 = 3081082049 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (3081082051) 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 3 ways as a sum of consecutive naturals, for example, 90620044 + ... + 90620077.
It is an arithmetic number, because the mean of its divisors is an integer number (815580549).
Almost surely, 23081082057 is an apocalyptic number.
It is an amenable number.
3081082057 is a deficient number, since it is larger than the sum of its proper divisors (181240139).
3081082057 is a wasteful number, since it uses less digits than its factorization.
3081082057 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 181240138.
The product of its (nonzero) digits is 13440, while the sum is 34.
The square root of 3081082057 is about 55507.4955028598. The cubic root of 3081082057 is about 1455.1276336511.
The spelling of 3081082057 in words is "three billion, eighty-one million, eighty-two thousand, fifty-seven".
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