Base | Representation |
---|---|
bin | 1111000111011001… |
… | …01000011001111001 |
3 | 202221112222112210001 |
4 | 13203230220121321 |
5 | 113104431021121 |
6 | 3421130353001 |
7 | 405046112365 |
oct | 74354503171 |
9 | 22845875701 |
10 | 8115095161 |
11 | 349483a118 |
12 | 16a588b761 |
13 | 9c4340674 |
14 | 56daa82a5 |
15 | 327682991 |
hex | 1e3b28679 |
8115095161 has 4 divisors (see below), whose sum is σ = 8120736000. Its totient is φ = 8109454324.
The previous prime is 8115095123. The next prime is 8115095171. The reversal of 8115095161 is 1615905118.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1615905118 = 2 ⋅807952559.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-8115095161 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 8115095161.
It is not an unprimeable number, because it can be changed into a prime (8115095171) 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, 2818261 + ... + 2821138.
It is an arithmetic number, because the mean of its divisors is an integer number (2030184000).
Almost surely, 28115095161 is an apocalyptic number.
It is an amenable number.
8115095161 is a deficient number, since it is larger than the sum of its proper divisors (5640839).
8115095161 is a wasteful number, since it uses less digits than its factorization.
8115095161 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5640838.
The product of its (nonzero) digits is 10800, while the sum is 37.
The square root of 8115095161 is about 90083.8229706089. The cubic root of 8115095161 is about 2009.5456313949.
The spelling of 8115095161 in words is "eight billion, one hundred fifteen million, ninety-five thousand, one hundred sixty-one".
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