Base | Representation |
---|---|
bin | 1000001010110… |
… | …10111101001011 |
3 | 11202221200110222 |
4 | 10011122331023 |
5 | 120020424440 |
6 | 10444500255 |
7 | 1461331622 |
oct | 405327513 |
9 | 152850428 |
10 | 68529995 |
11 | 35757666 |
12 | 1ab4a68b |
13 | 112756c1 |
14 | 915c6b9 |
15 | 603a2b5 |
hex | 415af4b |
68529995 has 32 divisors (see below), whose sum is σ = 90685440. Its totient is φ = 49547520.
The previous prime is 68529977. The next prime is 68529997. The reversal of 68529995 is 59992586.
It is a happy number.
It is not a de Polignac number, because 68529995 - 218 = 68267851 is a prime.
It is not an unprimeable number, because it can be changed into a prime (68529997) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 167351 + ... + 167759.
It is an arithmetic number, because the mean of its divisors is an integer number (2833920).
Almost surely, 268529995 is an apocalyptic number.
68529995 is a deficient number, since it is larger than the sum of its proper divisors (22155445).
68529995 is a wasteful number, since it uses less digits than its factorization.
68529995 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 515.
The product of its digits is 1749600, while the sum is 53.
The square root of 68529995 is about 8278.2845445177. The cubic root of 68529995 is about 409.2231870704.
The spelling of 68529995 in words is "sixty-eight million, five hundred twenty-nine thousand, nine hundred ninety-five".
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