Base | Representation |
---|---|
bin | 11111010010010000100001… |
… | …11111111111111111111111 |
3 | 100000120221021012011022222222 |
4 | 33221020100333333333333 |
5 | 33004132400232004444 |
6 | 402152534355555555 |
7 | 20330265363633653 |
oct | 1751102077777777 |
9 | 300527235138888 |
10 | 68797071359999 |
11 | 1aa147462794a4 |
12 | 78713bbbbbbbb |
13 | 2c506c7761328 |
14 | 12dbb203cca63 |
15 | 7e4882b5eeee |
hex | 3e9210ffffff |
68797071359999 has 64 divisors (see below), whose sum is σ = 73723469783040. Its totient is φ = 64103347123200.
The previous prime is 68797071359971. The next prime is 68797071360049. The reversal of 68797071359999 is 99995317079786.
It is a Cunningham number, because it is equal to 28804-1.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-68797071359999 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68797071359969) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 23896167842 + ... + 23896170720.
It is an arithmetic number, because the mean of its divisors is an integer number (1151929215360).
Almost surely, 268797071359999 is an apocalyptic number.
68797071359999 is a deficient number, since it is larger than the sum of its proper divisors (4926398423041).
68797071359999 is a wasteful number, since it uses less digits than its factorization.
68797071359999 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4000.
The product of its (nonzero) digits is 14582741040, while the sum is 89.
The spelling of 68797071359999 in words is "sixty-eight trillion, seven hundred ninety-seven billion, seventy-one million, three hundred fifty-nine thousand, nine hundred ninety-nine".
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