Base | Representation |
---|---|
bin | 111111100000000110… |
… | …101110110011101000 |
3 | 20111222212220220022011 |
4 | 333200012232303220 |
5 | 2104120144323113 |
6 | 51153511405304 |
7 | 4632446404630 |
oct | 774006566350 |
9 | 214885826264 |
10 | 68184370408 |
11 | 26a0a332750 |
12 | 1126a983834 |
13 | 657824450b |
14 | 342b8316c0 |
15 | 1b9101b63d |
hex | fe01aece8 |
68184370408 has 64 divisors (see below), whose sum is σ = 159451545600. Its totient is φ = 26555421120.
The previous prime is 68184370403. The next prime is 68184370409. The reversal of 68184370408 is 80407348186.
It is a happy number.
It is not an unprimeable number, because it can be changed into a prime (68184370403) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1754241 + ... + 1792687.
It is an arithmetic number, because the mean of its divisors is an integer number (2491430400).
Almost surely, 268184370408 is an apocalyptic number.
It is an amenable number.
68184370408 is an abundant number, since it is smaller than the sum of its proper divisors (91267175192).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68184370408 is a wasteful number, since it uses less digits than its factorization.
68184370408 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 41350 (or 41346 counting only the distinct ones).
The product of its (nonzero) digits is 1032192, while the sum is 49.
The spelling of 68184370408 in words is "sixty-eight billion, one hundred eighty-four million, three hundred seventy thousand, four hundred eight".
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