Base | Representation |
---|---|
bin | 1000001010011… |
… | …00010010110110 |
3 | 11202211122002210 |
4 | 10011030102312 |
5 | 120012014232 |
6 | 10443314250 |
7 | 1460661552 |
oct | 405142266 |
9 | 152748083 |
10 | 68469942 |
11 | 35716532 |
12 | 1ab1b986 |
13 | 11254278 |
14 | 9144862 |
15 | 60275cc |
hex | 414c4b6 |
68469942 has 32 divisors (see below), whose sum is σ = 144260352. Its totient is φ = 21622304.
The previous prime is 68469941. The next prime is 68469991. The reversal of 68469942 is 24996486.
It is a junction number, because it is equal to n+sod(n) for n = 68469891 and 68469900.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68469941) 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, 12448 + ... + 17084.
It is an arithmetic number, because the mean of its divisors is an integer number (4508136).
Almost surely, 268469942 is an apocalyptic number.
68469942 is an abundant number, since it is smaller than the sum of its proper divisors (75790410).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68469942 is a wasteful number, since it uses less digits than its factorization.
68469942 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4772.
The product of its digits is 746496, while the sum is 48.
The square root of 68469942 is about 8274.6566091893. The cubic root of 68469942 is about 409.1036177152.
The spelling of 68469942 in words is "sixty-eight million, four hundred sixty-nine thousand, nine hundred forty-two".
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