Base | Representation |
---|---|
bin | 1010101111111… |
… | …0001011101001 |
3 | 10010211100221120 |
4 | 2223332023221 |
5 | 43020100241 |
6 | 4250125453 |
7 | 1055120265 |
oct | 253761351 |
9 | 103740846 |
10 | 45081321 |
11 | 234a129a |
12 | 13120889 |
13 | 945564c |
14 | 5db70a5 |
15 | 3e57666 |
hex | 2afe2e9 |
45081321 has 8 divisors (see below), whose sum is σ = 60140640. Its totient is φ = 30038112.
The previous prime is 45081313. The next prime is 45081383. The reversal of 45081321 is 12318054.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 45081321 - 23 = 45081313 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 45081291 and 45081300.
It is not an unprimeable number, because it can be changed into a prime (45081391) 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, 6261 + ... + 11373.
It is an arithmetic number, because the mean of its divisors is an integer number (7517580).
Almost surely, 245081321 is an apocalyptic number.
It is an amenable number.
45081321 is a deficient number, since it is larger than the sum of its proper divisors (15059319).
45081321 is a wasteful number, since it uses less digits than its factorization.
45081321 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8055.
The product of its (nonzero) digits is 960, while the sum is 24.
The square root of 45081321 is about 6714.2625060389. The cubic root of 45081321 is about 355.9034608618.
Adding to 45081321 its reverse (12318054), we get a palindrome (57399375).
The spelling of 45081321 in words is "forty-five million, eighty-one thousand, three hundred twenty-one".
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