Base | Representation |
---|---|
bin | 1000001011000… |
… | …10010011011001 |
3 | 11210000012202120 |
4 | 10011202103121 |
5 | 120022410324 |
6 | 10445251453 |
7 | 1461515433 |
oct | 405422331 |
9 | 153005676 |
10 | 68560089 |
11 | 35778234 |
12 | 1ab63b89 |
13 | 11286300 |
14 | 9169653 |
15 | 6044179 |
hex | 41624d9 |
68560089 has 24 divisors (see below), whose sum is σ = 102421440. Its totient is φ = 40727232.
The previous prime is 68560087. The next prime is 68560097. The reversal of 68560089 is 98006586.
It is not a de Polignac number, because 68560089 - 21 = 68560087 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 68560089.
It is not an unprimeable number, because it can be changed into a prime (68560087) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12372 + ... + 17034.
It is an arithmetic number, because the mean of its divisors is an integer number (4267560).
Almost surely, 268560089 is an apocalyptic number.
It is an amenable number.
68560089 is a deficient number, since it is larger than the sum of its proper divisors (33861351).
68560089 is a wasteful number, since it uses less digits than its factorization.
68560089 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4721 (or 4708 counting only the distinct ones).
The product of its (nonzero) digits is 103680, while the sum is 42.
The square root of 68560089 is about 8280.1019921255. The cubic root of 68560089 is about 409.2830798729.
The spelling of 68560089 in words is "sixty-eight million, five hundred sixty thousand, eighty-nine".
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