Base | Representation |
---|---|
bin | 111111101101011000… |
… | …010001110000101001 |
3 | 20112120101222101222011 |
4 | 333231120101300221 |
5 | 2110044202330313 |
6 | 51231544555521 |
7 | 4641122351020 |
oct | 775530216051 |
9 | 215511871864 |
10 | 68407073833 |
11 | 2701401206a |
12 | 11311482ba1 |
13 | 65b241a5a7 |
14 | 344d2438b7 |
15 | 1ba585c93d |
hex | fed611c29 |
68407073833 has 32 divisors (see below), whose sum is σ = 83506176000. Its totient is φ = 54733423680.
The previous prime is 68407073807. The next prime is 68407073837. The reversal of 68407073833 is 33837070486.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-68407073833 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (68407073837) 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 31 ways as a sum of consecutive naturals, for example, 5341668 + ... + 5354458.
It is an arithmetic number, because the mean of its divisors is an integer number (2609568000).
Almost surely, 268407073833 is an apocalyptic number.
It is an amenable number.
68407073833 is a deficient number, since it is larger than the sum of its proper divisors (15099102167).
68407073833 is a wasteful number, since it uses less digits than its factorization.
68407073833 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13405.
The product of its (nonzero) digits is 2032128, while the sum is 49.
The spelling of 68407073833 in words is "sixty-eight billion, four hundred seven million, seventy-three thousand, eight hundred thirty-three".
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