Base | Representation |
---|---|
bin | 1000000010110… |
… | …10110011101001 |
3 | 11200222101021020 |
4 | 10001122303221 |
5 | 114233341214 |
6 | 10410203053 |
7 | 1446402024 |
oct | 401326351 |
9 | 150871236 |
10 | 67480809 |
11 | 35100370 |
12 | 1a723489 |
13 | 10c98c96 |
14 | 8d681bb |
15 | 5dce4a9 |
hex | 405ace9 |
67480809 has 8 divisors (see below), whose sum is σ = 98153952. Its totient is φ = 40897440.
The previous prime is 67480789. The next prime is 67480811. The reversal of 67480809 is 90808476.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 67480809 - 212 = 67476713 is a prime.
It is not an unprimeable number, because it can be changed into a prime (67480849) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1022404 + ... + 1022469.
It is an arithmetic number, because the mean of its divisors is an integer number (12269244).
Almost surely, 267480809 is an apocalyptic number.
It is an amenable number.
67480809 is a deficient number, since it is larger than the sum of its proper divisors (30673143).
67480809 is a wasteful number, since it uses less digits than its factorization.
67480809 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2044887.
The product of its (nonzero) digits is 96768, while the sum is 42.
The square root of 67480809 is about 8214.6703524852. The cubic root of 67480809 is about 407.1240518773.
The spelling of 67480809 in words is "sixty-seven million, four hundred eighty thousand, eight hundred nine".
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