Base | Representation |
---|---|
bin | 111111010101101101… |
… | …111110100101101001 |
3 | 20111112202000111222122 |
4 | 333111231332211221 |
5 | 2103241041444124 |
6 | 51124324401025 |
7 | 4625232251003 |
oct | 772555764551 |
9 | 214482014878 |
10 | 68010109289 |
11 | 2692aa2a7a1 |
12 | 11220546175 |
13 | 654b0cc825 |
14 | 341262d373 |
15 | 1b80a9875e |
hex | fd5b7e969 |
68010109289 has 2 divisors, whose sum is σ = 68010109290. Its totient is φ = 68010109288.
The previous prime is 68010109267. The next prime is 68010109327. The reversal of 68010109289 is 98290101086.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 43475586064 + 24534523225 = 208508^2 + 156635^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-68010109289 is a prime.
It is not a weakly prime, because it can be changed into another prime (68010109229) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34005054644 + 34005054645.
It is an arithmetic number, because the mean of its divisors is an integer number (34005054645).
Almost surely, 268010109289 is an apocalyptic number.
It is an amenable number.
68010109289 is a deficient number, since it is larger than the sum of its proper divisors (1).
68010109289 is an equidigital number, since it uses as much as digits as its factorization.
68010109289 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 62208, while the sum is 44.
The spelling of 68010109289 in words is "sixty-eight billion, ten million, one hundred nine thousand, two hundred eighty-nine".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.066 sec. • engine limits •