Base | Representation |
---|---|
bin | 1000100111000… |
… | …10011111100101 |
3 | 12000220201010222 |
4 | 10103202133211 |
5 | 121442342020 |
6 | 11100054125 |
7 | 1534644446 |
oct | 423423745 |
9 | 160821128 |
10 | 72230885 |
11 | 37855151 |
12 | 20234345 |
13 | 11c7008c |
14 | 98432cd |
15 | 651bb25 |
hex | 44e27e5 |
72230885 has 16 divisors (see below), whose sum is σ = 88646400. Its totient is φ = 56486976.
The previous prime is 72230867. The next prime is 72230897. The reversal of 72230885 is 58803227.
It is a happy number.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-72230885 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41411 + ... + 43119.
It is an arithmetic number, because the mean of its divisors is an integer number (5540400).
Almost surely, 272230885 is an apocalyptic number.
It is an amenable number.
72230885 is a deficient number, since it is larger than the sum of its proper divisors (16415515).
72230885 is a wasteful number, since it uses less digits than its factorization.
72230885 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1900.
The product of its (nonzero) digits is 26880, while the sum is 35.
The square root of 72230885 is about 8498.8755138548. The cubic root of 72230885 is about 416.4609754532.
The spelling of 72230885 in words is "seventy-two million, two hundred thirty thousand, eight hundred eighty-five".
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