Base | Representation |
---|---|
bin | 111111111010011000… |
… | …000000001000010000 |
3 | 20120010121020120002021 |
4 | 333322120000020100 |
5 | 2111021011333144 |
6 | 51305334101224 |
7 | 4646410525441 |
oct | 777230001020 |
9 | 216117216067 |
10 | 68625105424 |
11 | 271160a0467 |
12 | 113724aa814 |
13 | 6618649075 |
14 | 347019b2c8 |
15 | 1bb9a79884 |
hex | ffa600210 |
68625105424 has 20 divisors (see below), whose sum is σ = 133629294400. Its totient is φ = 34140126240.
The previous prime is 68625105403. The next prime is 68625105427. The reversal of 68625105424 is 42450152686.
It is a super-2 number, since 2×686251054242 (a number of 22 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (68625105427) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10773372 + ... + 10779739.
It is an arithmetic number, because the mean of its divisors is an integer number (6681464720).
Almost surely, 268625105424 is an apocalyptic number.
It is an amenable number.
68625105424 is a deficient number, since it is larger than the sum of its proper divisors (65004188976).
68625105424 is a wasteful number, since it uses less digits than its factorization.
68625105424 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 21553318 (or 21553312 counting only the distinct ones).
The product of its (nonzero) digits is 460800, while the sum is 43.
The spelling of 68625105424 in words is "sixty-eight billion, six hundred twenty-five million, one hundred five thousand, four hundred twenty-four".
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