Base | Representation |
---|---|
bin | 111111111101011001… |
… | …101000000010010100 |
3 | 20120021010202021221111 |
4 | 333331121220002110 |
5 | 2111122010101201 |
6 | 51314350024404 |
7 | 4650565125661 |
oct | 777531500224 |
9 | 216233667844 |
10 | 68675862676 |
11 | 27141809103 |
12 | 113874a8104 |
13 | 662600b045 |
14 | 3476c10a68 |
15 | 1bbe253b51 |
hex | ffd668094 |
68675862676 has 12 divisors (see below), whose sum is σ = 127252333908. Its totient is φ = 32318052992.
The previous prime is 68675862583. The next prime is 68675862677. The reversal of 68675862676 is 67626857686.
It can be written as a sum of positive squares in 2 ways, for example, as 23635987600 + 45039875076 = 153740^2 + 212226^2 .
It is a super-2 number, since 2×686758626762 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68675862677) 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 3 ways as a sum of consecutive naturals, for example, 504969511 + ... + 504969646.
It is an arithmetic number, because the mean of its divisors is an integer number (10604361159).
Almost surely, 268675862676 is an apocalyptic number.
It is an amenable number.
68675862676 is a deficient number, since it is larger than the sum of its proper divisors (58576471232).
68675862676 is a wasteful number, since it uses less digits than its factorization.
68675862676 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1009939178 (or 1009939176 counting only the distinct ones).
The product of its digits is 243855360, while the sum is 67.
The spelling of 68675862676 in words is "sixty-eight billion, six hundred seventy-five million, eight hundred sixty-two thousand, six hundred seventy-six".
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