Base | Representation |
---|---|
bin | 1111011111001110… |
… | …11110001000101001 |
3 | 210110111021021021101 |
4 | 13233213132020221 |
5 | 114012124201334 |
6 | 3453032441401 |
7 | 413024630404 |
oct | 75747361051 |
9 | 23414237241 |
10 | 8315068969 |
11 | 3587704429 |
12 | 1740849261 |
13 | a268b8a6c |
14 | 58c480d3b |
15 | 339ed4214 |
hex | 1ef9de229 |
8315068969 has 9 divisors (see below), whose sum is σ = 8447233431. Its totient is φ = 8184945120.
The previous prime is 8315068963. The next prime is 8315068973. The reversal of 8315068969 is 9698605138.
It is a happy number.
The square root of 8315068969 is 91187.
It is a perfect power (a square), and thus also a powerful number.
It can be written as a sum of positive squares in only one way, i.e., 1412782569 + 6902286400 = 37587^2 + 83080^2 .
It is not a de Polignac number, because 8315068969 - 29 = 8315068457 is a prime.
It is a super-2 number, since 2×83150689692 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (8315068963) by changing a digit.
It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 6108849 + ... + 6110209.
Almost surely, 28315068969 is an apocalyptic number.
8315068969 is the 91187-th square number.
8315068969 is the 45594-th centered octagonal number.
It is an amenable number.
8315068969 is a deficient number, since it is larger than the sum of its proper divisors (132164462).
8315068969 is an frugal number, since it uses more digits than its factorization.
8315068969 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2856 (or 1428 counting only the distinct ones).
The product of its (nonzero) digits is 2799360, while the sum is 55.
The cubic root of 8315068969 is about 2025.9184143924.
The spelling of 8315068969 in words is "eight billion, three hundred fifteen million, sixty-eight thousand, nine hundred sixty-nine".
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