Base | Representation |
---|---|
bin | 1000000111000… |
… | …10000110101110 |
3 | 11202000112110110 |
4 | 10003202012232 |
5 | 114404104430 |
6 | 10430120450 |
7 | 1454200512 |
oct | 403420656 |
9 | 152015413 |
10 | 68034990 |
11 | 35449771 |
12 | 1a950126 |
13 | 111312ba |
14 | 9070142 |
15 | 5e8d7b0 |
hex | 40e21ae |
68034990 has 32 divisors (see below), whose sum is σ = 167269536. Its totient is φ = 17699840.
The previous prime is 68034929. The next prime is 68034997. The reversal of 68034990 is 9943086.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68034997) 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 15 ways as a sum of consecutive naturals, for example, 26427 + ... + 28886.
It is an arithmetic number, because the mean of its divisors is an integer number (5227173).
Almost surely, 268034990 is an apocalyptic number.
68034990 is an abundant number, since it is smaller than the sum of its proper divisors (99234546).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68034990 is a wasteful number, since it uses less digits than its factorization.
68034990 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 55364.
The product of its (nonzero) digits is 46656, while the sum is 39.
The square root of 68034990 is about 8248.3325587660. The cubic root of 68034990 is about 408.2355065756.
The spelling of 68034990 in words is "sixty-eight million, thirty-four thousand, nine hundred ninety".
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