Base | Representation |
---|---|
bin | 1000001011110… |
… | …10011011010111 |
3 | 11210012020022100 |
4 | 10011322123113 |
5 | 120034041103 |
6 | 10451333143 |
7 | 1462406505 |
oct | 405723327 |
9 | 153166270 |
10 | 68658903 |
11 | 358354a5 |
12 | 1abb11b3 |
13 | 112bc291 |
14 | 9193675 |
15 | 60635a3 |
hex | 417a6d7 |
68658903 has 24 divisors (see below), whose sum is σ = 107001648. Its totient is φ = 42262272.
The previous prime is 68658901. The next prime is 68658929. The reversal of 68658903 is 30985686.
68658903 is a `hidden beast` number, since 68 + 6 + 589 + 0 + 3 = 666.
It is not a de Polignac number, because 68658903 - 21 = 68658901 is a prime.
It is a super-2 number, since 2×686589032 = 9428089922326818, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68658901) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3876 + ... + 12342.
It is an arithmetic number, because the mean of its divisors is an integer number (4458402).
Almost surely, 268658903 is an apocalyptic number.
68658903 is a deficient number, since it is larger than the sum of its proper divisors (38342745).
68658903 is a wasteful number, since it uses less digits than its factorization.
68658903 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8543 (or 8540 counting only the distinct ones).
The product of its (nonzero) digits is 311040, while the sum is 45.
The square root of 68658903 is about 8286.0667991515. The cubic root of 68658903 is about 409.4796154209.
The spelling of 68658903 in words is "sixty-eight million, six hundred fifty-eight thousand, nine hundred three".
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