Base | Representation |
---|---|
bin | 111111110001110110… |
… | …101111110010011111 |
3 | 20112202122021200120020 |
4 | 333301312233302133 |
5 | 2110222413420030 |
6 | 51243230323223 |
7 | 4643023561230 |
oct | 776166576237 |
9 | 215678250506 |
10 | 68482170015 |
11 | 27052443a26 |
12 | 11332659513 |
13 | 65c4b518bc |
14 | 34591d1087 |
15 | 1bac243510 |
hex | ff1dafc9f |
68482170015 has 32 divisors (see below), whose sum is σ = 128136746496. Its totient is φ = 30578083200.
The previous prime is 68482170013. The next prime is 68482170077. The reversal of 68482170015 is 51007128486.
It is not a de Polignac number, because 68482170015 - 21 = 68482170013 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68482170013) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7579336 + ... + 7588365.
It is an arithmetic number, because the mean of its divisors is an integer number (4004273328).
Almost surely, 268482170015 is an apocalyptic number.
68482170015 is a deficient number, since it is larger than the sum of its proper divisors (59654576481).
68482170015 is a wasteful number, since it uses less digits than its factorization.
68482170015 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15167759.
The product of its (nonzero) digits is 107520, while the sum is 42.
The spelling of 68482170015 in words is "sixty-eight billion, four hundred eighty-two million, one hundred seventy thousand, fifteen".
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