Base | Representation |
---|---|
bin | 1000100111000… |
… | …10011010101001 |
3 | 12000220200201021 |
4 | 10103202122221 |
5 | 121442334234 |
6 | 11100052441 |
7 | 1534643515 |
oct | 423423251 |
9 | 160820637 |
10 | 72230569 |
11 | 37854994 |
12 | 20234121 |
13 | 11c6cba8 |
14 | 9843145 |
15 | 651b9b4 |
hex | 44e26a9 |
72230569 has 8 divisors (see below), whose sum is σ = 77448960. Its totient is φ = 67119936.
The previous prime is 72230563. The next prime is 72230579. The reversal of 72230569 is 96503227.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 72230569 - 25 = 72230537 is a prime.
It is a super-4 number, since 4×722305694 (a number of 33 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (72230563) 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, 25549 + ... + 28234.
It is an arithmetic number, because the mean of its divisors is an integer number (9681120).
Almost surely, 272230569 is an apocalyptic number.
72230569 is a gapful number since it is divisible by the number (79) formed by its first and last digit.
It is an amenable number.
72230569 is a deficient number, since it is larger than the sum of its proper divisors (5218391).
72230569 is a wasteful number, since it uses less digits than its factorization.
72230569 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 53879.
The product of its (nonzero) digits is 22680, while the sum is 34.
The square root of 72230569 is about 8498.8569231397. The cubic root of 72230569 is about 416.4603681328.
The spelling of 72230569 in words is "seventy-two million, two hundred thirty thousand, five hundred sixty-nine".
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