Base | Representation |
---|---|
bin | 111111110000011010… |
… | …000100100000011110 |
3 | 20112200221120101201212 |
4 | 333300122010200132 |
5 | 2110200204003421 |
6 | 51241001504422 |
7 | 4642310224550 |
oct | 776032044036 |
9 | 215627511655 |
10 | 68457875486 |
11 | 2703a760100 |
12 | 113264a2112 |
13 | 65bcac6840 |
14 | 3455ca94d0 |
15 | 1baa044e5b |
hex | ff068481e |
68457875486 has 48 divisors (see below), whose sum is σ = 138917742432. Its totient is φ = 24620207040.
The previous prime is 68457875483. The next prime is 68457875543.
68457875486 is nontrivially palindromic in base 10.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68457875483) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1532285 + ... + 1576328.
It is an arithmetic number, because the mean of its divisors is an integer number (2894119634).
Almost surely, 268457875486 is an apocalyptic number.
68457875486 is an abundant number, since it is smaller than the sum of its proper divisors (70459866946).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68457875486 is a wasteful number, since it uses less digits than its factorization.
68457875486 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3108657 (or 3108646 counting only the distinct ones).
The product of its digits is 361267200, while the sum is 68.
The spelling of 68457875486 in words is "sixty-eight billion, four hundred fifty-seven million, eight hundred seventy-five thousand, four hundred eighty-six".
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