Base | Representation |
---|---|
bin | 1000101100110… |
… | …10001011100001 |
3 | 12002022221012220 |
4 | 10112122023201 |
5 | 122140431030 |
6 | 11124141253 |
7 | 1544230125 |
oct | 426321341 |
9 | 162287186 |
10 | 72983265 |
11 | 38219453 |
12 | 20537829 |
13 | 12174684 |
14 | 999b585 |
15 | 6619a10 |
hex | 459a2e1 |
72983265 has 8 divisors (see below), whose sum is σ = 116773248. Its totient is φ = 38924400.
The previous prime is 72983263. The next prime is 72983291. The reversal of 72983265 is 56238927.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 72983265 - 21 = 72983263 is a prime.
It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is not an unprimeable number, because it can be changed into a prime (72983263) 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, 2432761 + ... + 2432790.
It is an arithmetic number, because the mean of its divisors is an integer number (14596656).
Almost surely, 272983265 is an apocalyptic number.
It is an amenable number.
72983265 is a deficient number, since it is larger than the sum of its proper divisors (43789983).
72983265 is a wasteful number, since it uses less digits than its factorization.
72983265 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4865559.
The product of its digits is 181440, while the sum is 42.
The square root of 72983265 is about 8543.0243473842. The cubic root of 72983265 is about 417.9019805574.
The spelling of 72983265 in words is "seventy-two million, nine hundred eighty-three thousand, two hundred sixty-five".
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