Base | Representation |
---|---|
bin | 1000001010001… |
… | …01101101111100 |
3 | 11202210021011002 |
4 | 10011011231330 |
5 | 120010134004 |
6 | 10442545432 |
7 | 1460520200 |
oct | 405055574 |
9 | 152707132 |
10 | 68443004 |
11 | 356a8273 |
12 | 1ab08278 |
13 | 11244c26 |
14 | 9138b00 |
15 | 601e61e |
hex | 4145b7c |
68443004 has 18 divisors (see below), whose sum is σ = 139330800. Its totient is φ = 29332632.
The previous prime is 68442989. The next prime is 68443013. The reversal of 68443004 is 40034486.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 174404 + ... + 174795.
It is an arithmetic number, because the mean of its divisors is an integer number (7740600).
Almost surely, 268443004 is an apocalyptic number.
It is an amenable number.
68443004 is an abundant number, since it is smaller than the sum of its proper divisors (70887796).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68443004 is a wasteful number, since it uses less digits than its factorization.
68443004 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 349217 (or 349208 counting only the distinct ones).
The product of its (nonzero) digits is 9216, while the sum is 29.
The square root of 68443004 is about 8273.0287077950. The cubic root of 68443004 is about 409.0499597231.
The spelling of 68443004 in words is "sixty-eight million, four hundred forty-three thousand, four".
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