Base | Representation |
---|---|
bin | 111111110100001110… |
… | …110101010011110111 |
3 | 20112212102022012212111 |
4 | 333310032311103313 |
5 | 2110313120213034 |
6 | 51251213031451 |
7 | 4644016501024 |
oct | 776416652367 |
9 | 215772265774 |
10 | 68522038519 |
11 | 270729a4800 |
12 | 11343a85587 |
13 | 66001a062c |
14 | 346060c54b |
15 | 1bb09bb364 |
hex | ff43b54f7 |
68522038519 has 24 divisors (see below), whose sum is σ = 77469935760. Its totient is φ = 60517733760.
The previous prime is 68522038513. The next prime is 68522038549. The reversal of 68522038519 is 91583022586.
It is a happy number.
It is not a de Polignac number, because 68522038519 - 27 = 68522038391 is a prime.
It is a super-2 number, since 2×685220385192 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68522038513) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3046587 + ... + 3068995.
It is an arithmetic number, because the mean of its divisors is an integer number (3227913990).
Almost surely, 268522038519 is an apocalyptic number.
68522038519 is a deficient number, since it is larger than the sum of its proper divisors (8947897241).
68522038519 is a wasteful number, since it uses less digits than its factorization.
68522038519 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 23151 (or 23140 counting only the distinct ones).
The product of its (nonzero) digits is 1036800, while the sum is 49.
The spelling of 68522038519 in words is "sixty-eight billion, five hundred twenty-two million, thirty-eight thousand, five hundred nineteen".
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