Base | Representation |
---|---|
bin | 111111011001010001… |
… | …001101000111101101 |
3 | 20111200220002210110122 |
4 | 333121101031013231 |
5 | 2103401314104001 |
6 | 51134253214325 |
7 | 4626554460302 |
oct | 773121150755 |
9 | 214626083418 |
10 | 68069675501 |
11 | 26960614773 |
12 | 112384913a5 |
13 | 655a5571c9 |
14 | 341a4d70a9 |
15 | 1b85e12b1b |
hex | fd944d1ed |
68069675501 has 2 divisors, whose sum is σ = 68069675502. Its totient is φ = 68069675500.
The previous prime is 68069675489. The next prime is 68069675521. The reversal of 68069675501 is 10557696086.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 50041242601 + 18028432900 = 223699^2 + 134270^2 .
It is a cyclic number.
It is not a de Polignac number, because 68069675501 - 214 = 68069659117 is a prime.
It is a super-2 number, since 2×680696755012 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (68069675521) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34034837750 + 34034837751.
It is an arithmetic number, because the mean of its divisors is an integer number (34034837751).
Almost surely, 268069675501 is an apocalyptic number.
It is an amenable number.
68069675501 is a deficient number, since it is larger than the sum of its proper divisors (1).
68069675501 is an equidigital number, since it uses as much as digits as its factorization.
68069675501 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 2721600, while the sum is 53.
The spelling of 68069675501 in words is "sixty-eight billion, sixty-nine million, six hundred seventy-five thousand, five hundred one".
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