Base | Representation |
---|---|
bin | 111111101101101100… |
… | …010011110110101000 |
3 | 20112120202212012121111 |
4 | 333231230103312220 |
5 | 2110102023402123 |
6 | 51232253320104 |
7 | 4641215112256 |
oct | 775554236650 |
9 | 215522765544 |
10 | 68412325288 |
11 | 27016a7960a |
12 | 11313196034 |
13 | 65b3538968 |
14 | 344dc0d5d6 |
15 | 1ba604890d |
hex | fedb13da8 |
68412325288 has 32 divisors (see below), whose sum is σ = 130311777960. Its totient is φ = 33666416640.
The previous prime is 68412325277. The next prime is 68412325309. The reversal of 68412325288 is 88252321486.
It is a happy number.
It can be written as a sum of positive squares in 4 ways, for example, as 25039264644 + 43373060644 = 158238^2 + 208262^2 .
It is a super-2 number, since 2×684123252882 (a number of 22 digits) contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103081 + ... + 383992.
Almost surely, 268412325288 is an apocalyptic number.
It is an amenable number.
68412325288 is a deficient number, since it is larger than the sum of its proper divisors (61899452672).
68412325288 is a wasteful number, since it uses less digits than its factorization.
68412325288 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 487357 (or 487353 counting only the distinct ones).
The product of its digits is 1474560, while the sum is 49.
The spelling of 68412325288 in words is "sixty-eight billion, four hundred twelve million, three hundred twenty-five thousand, two hundred eighty-eight".
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