Base | Representation |
---|---|
bin | 1000001110001… |
… | …11010100010001 |
3 | 11210210020022201 |
4 | 10013013110101 |
5 | 120124130331 |
6 | 10502203201 |
7 | 1465160626 |
oct | 407072421 |
9 | 153706281 |
10 | 68973841 |
11 | 35a30082 |
12 | 1b123501 |
13 | 1139c731 |
14 | 923634d |
15 | 60c6a61 |
hex | 41c7511 |
68973841 has 4 divisors (see below), whose sum is σ = 68991552. Its totient is φ = 68956132.
The previous prime is 68973833. The next prime is 68973871. The reversal of 68973841 is 14837986.
It is a happy number.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 68973841 - 23 = 68973833 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 68973791 and 68973800.
It is not an unprimeable number, because it can be changed into a prime (68973871) 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 3 ways as a sum of consecutive naturals, for example, 181 + ... + 11746.
It is an arithmetic number, because the mean of its divisors is an integer number (17247888).
Almost surely, 268973841 is an apocalyptic number.
It is an amenable number.
68973841 is a deficient number, since it is larger than the sum of its proper divisors (17711).
68973841 is a wasteful number, since it uses less digits than its factorization.
68973841 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 17710.
The product of its digits is 290304, while the sum is 46.
The square root of 68973841 is about 8305.0491268866. The cubic root of 68973841 is about 410.1047541177.
The spelling of 68973841 in words is "sixty-eight million, nine hundred seventy-three thousand, eight hundred forty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.067 sec. • engine limits •