Base | Representation |
---|---|
bin | 1000101001000… |
… | …00110000000000 |
3 | 12001101122221112 |
4 | 10110200300000 |
5 | 122024022023 |
6 | 11105342452 |
7 | 1540056056 |
oct | 424406000 |
9 | 161348845 |
10 | 72485888 |
11 | 37a097a2 |
12 | 20337a28 |
13 | 1202c177 |
14 | 98ac1d6 |
15 | 656c478 |
hex | 4520c00 |
72485888 has 44 divisors (see below), whose sum is σ = 147089232. Its totient is φ = 35696640.
The previous prime is 72485887. The next prime is 72485899. The reversal of 72485888 is 88858427.
It is not an unprimeable number, because it can be changed into a prime (72485887) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72206 + ... + 73202.
Almost surely, 272485888 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 72485888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73544616).
72485888 is an abundant number, since it is smaller than the sum of its proper divisors (74603344).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
72485888 is an equidigital number, since it uses as much as digits as its factorization.
72485888 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1088 (or 1070 counting only the distinct ones).
The product of its digits is 1146880, while the sum is 50.
The square root of 72485888 is about 8513.8644574600. The cubic root of 72485888 is about 416.9504893611.
The spelling of 72485888 in words is "seventy-two million, four hundred eighty-five thousand, eight hundred eighty-eight".
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