Base | Representation |
---|---|
bin | 101101110010011… |
… | …010101000001010 |
3 | 1222112111010221000 |
4 | 231302122220022 |
5 | 3033124102421 |
6 | 204120555430 |
7 | 25015341603 |
oct | 5562325012 |
9 | 1875433830 |
10 | 768190986 |
11 | 364695292 |
12 | 195322b76 |
13 | c31c66a4 |
14 | 74048daa |
15 | 47692226 |
hex | 2dc9aa0a |
768190986 has 32 divisors (see below), whose sum is σ = 1708012800. Its totient is φ = 255925440.
The previous prime is 768190967. The next prime is 768190991. The reversal of 768190986 is 689091867.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 166146 + ... + 170706.
It is an arithmetic number, because the mean of its divisors is an integer number (53375400).
Almost surely, 2768190986 is an apocalyptic number.
768190986 is an abundant number, since it is smaller than the sum of its proper divisors (939821814).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
768190986 is a wasteful number, since it uses less digits than its factorization.
768190986 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7691 (or 7685 counting only the distinct ones).
The product of its (nonzero) digits is 1306368, while the sum is 54.
The square root of 768190986 is about 27716.2585137316. The cubic root of 768190986 is about 915.8472989990.
The spelling of 768190986 in words is "seven hundred sixty-eight million, one hundred ninety thousand, nine hundred eighty-six".
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