Base | Representation |
---|---|
bin | 111111011011010100… |
… | …110110101011110000 |
3 | 20111210022001010210210 |
4 | 333123110312223300 |
5 | 2103434132432413 |
6 | 51141525024120 |
7 | 4630454014623 |
oct | 773324665360 |
9 | 214708033723 |
10 | 68104186608 |
11 | 26979046447 |
12 | 11247b55040 |
13 | 656474b593 |
14 | 3420d1bdba |
15 | 1b88e7d3c3 |
hex | fdb536af0 |
68104186608 has 80 divisors (see below), whose sum is σ = 186335859456. Its totient is φ = 21360184320.
The previous prime is 68104186543. The next prime is 68104186613. The reversal of 68104186608 is 80668140186.
It is a Harshad number since it is a multiple of its sum of digits (48).
It is a congruent number.
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, 3730623 + ... + 3748833.
Almost surely, 268104186608 is an apocalyptic number.
68104186608 is a gapful number since it is divisible by the number (68) formed by its first and last digit.
It is an amenable number.
68104186608 is an abundant number, since it is smaller than the sum of its proper divisors (118231672848).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68104186608 is a wasteful number, since it uses less digits than its factorization.
68104186608 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 22822 (or 22816 counting only the distinct ones).
The product of its (nonzero) digits is 442368, while the sum is 48.
The spelling of 68104186608 in words is "sixty-eight billion, one hundred four million, one hundred eighty-six thousand, six hundred eight".
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