Base | Representation |
---|---|
bin | 1000001010000… |
… | …10100011001110 |
3 | 11202202121100120 |
4 | 10011002203032 |
5 | 120004230110 |
6 | 10442405410 |
7 | 1460434314 |
oct | 405024316 |
9 | 152677316 |
10 | 68430030 |
11 | 35699549 |
12 | 1ab00866 |
13 | 1123c056 |
14 | 91340b4 |
15 | 601a870 |
hex | 41428ce |
68430030 has 16 divisors (see below), whose sum is σ = 164232144. Its totient is φ = 18248000.
The previous prime is 68430017. The next prime is 68430041. The reversal of 68430030 is 3003486.
It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a congruent number.
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, 1140471 + ... + 1140530.
It is an arithmetic number, because the mean of its divisors is an integer number (10264509).
Almost surely, 268430030 is an apocalyptic number.
68430030 is an abundant number, since it is smaller than the sum of its proper divisors (95802114).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68430030 is a wasteful number, since it uses less digits than its factorization.
68430030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2281011.
The product of its (nonzero) digits is 1728, while the sum is 24.
The square root of 68430030 is about 8272.2445563462. The cubic root of 68430030 is about 409.0241116976.
The spelling of 68430030 in words is "sixty-eight million, four hundred thirty thousand, thirty".
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