Base | Representation |
---|---|
bin | 1000001001011… |
… | …01111000011010 |
3 | 11202121022020000 |
4 | 10010231320122 |
5 | 114444022440 |
6 | 10440513430 |
7 | 1456632432 |
oct | 404557032 |
9 | 152538200 |
10 | 68345370 |
11 | 35640985 |
12 | 1aa7b876 |
13 | 1120c662 |
14 | 91112c2 |
15 | 6000730 |
hex | 412de1a |
68345370 has 40 divisors (see below), whose sum is σ = 183775284. Its totient is φ = 18225216.
The previous prime is 68345363. The next prime is 68345377. The reversal of 68345370 is 7354386.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (68345363) and next prime (68345377).
It can be written as a sum of positive squares in 2 ways, for example, as 67519089 + 826281 = 8217^2 + 909^2 .
It is not an unprimeable number, because it can be changed into a prime (68345377) by changing a digit.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 41379 + ... + 42998.
Almost surely, 268345370 is an apocalyptic number.
68345370 is an abundant number, since it is smaller than the sum of its proper divisors (115429914).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68345370 is a wasteful number, since it uses less digits than its factorization.
68345370 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 84396 (or 84387 counting only the distinct ones).
The product of its (nonzero) digits is 60480, while the sum is 36.
The square root of 68345370 is about 8267.1258609023. The cubic root of 68345370 is about 408.8553637983.
The spelling of 68345370 in words is "sixty-eight million, three hundred forty-five thousand, three hundred seventy".
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