Base | Representation |
---|---|
bin | 10000010010011111… |
… | …10010110110010001 |
3 | 211120110101120202100 |
4 | 20021033302312101 |
5 | 120402214214334 |
6 | 4003433111013 |
7 | 426465603546 |
oct | 101117626621 |
9 | 24513346670 |
10 | 8745069969 |
11 | 3788400559 |
12 | 1840858469 |
13 | a94a0291c |
14 | 5cd614bcd |
15 | 362b21c99 |
hex | 2093f2d91 |
8745069969 has 6 divisors (see below), whose sum is σ = 12631767746. Its totient is φ = 5830046640.
The previous prime is 8745069953. The next prime is 8745070007. The reversal of 8745069969 is 9699605478.
It is a happy number.
It can be written as a sum of positive squares in only one way, i.e., 7070623569 + 1674446400 = 84087^2 + 40920^2 .
It is not a de Polignac number, because 8745069969 - 24 = 8745069953 is a prime.
It is a super-2 number, since 2×87450699692 (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 (8745069469) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 485837212 + ... + 485837229.
Almost surely, 28745069969 is an apocalyptic number.
It is an amenable number.
8745069969 is a deficient number, since it is larger than the sum of its proper divisors (3886697777).
8745069969 is a wasteful number, since it uses less digits than its factorization.
8745069969 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 971674447 (or 971674444 counting only the distinct ones).
The product of its (nonzero) digits is 29393280, while the sum is 63.
The square root of 8745069969 is about 93515.0788322397. The cubic root of 8745069969 is about 2060.2555664484.
The spelling of 8745069969 in words is "eight billion, seven hundred forty-five million, sixty-nine thousand, nine hundred sixty-nine".
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