Base | Representation |
---|---|
bin | 1000100110111… |
… | …00010000011101 |
3 | 12000212102002220 |
4 | 10103130100131 |
5 | 121441032331 |
6 | 11055335553 |
7 | 1534510125 |
oct | 423342035 |
9 | 160772086 |
10 | 72205341 |
11 | 37837a3a |
12 | 202215b9 |
13 | 11c61570 |
14 | 9837c85 |
15 | 6514296 |
hex | 44dc41d |
72205341 has 16 divisors (see below), whose sum is σ = 109779264. Its totient is φ = 41819904.
The previous prime is 72205337. The next prime is 72205351. The reversal of 72205341 is 14350227.
It is not a de Polignac number, because 72205341 - 22 = 72205337 is a prime.
It is a super-2 number, since 2×722053412 = 10427222537852562, which contains 22 as substring.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (72205351) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53791 + ... + 55116.
It is an arithmetic number, because the mean of its divisors is an integer number (6861204).
Almost surely, 272205341 is an apocalyptic number.
It is an amenable number.
72205341 is a deficient number, since it is larger than the sum of its proper divisors (37573923).
72205341 is a wasteful number, since it uses less digits than its factorization.
72205341 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 108940.
The product of its (nonzero) digits is 1680, while the sum is 24.
The square root of 72205341 is about 8497.3725939257. The cubic root of 72205341 is about 416.4118767265.
Adding to 72205341 its reverse (14350227), we get a palindrome (86555568).
It can be divided in two parts, 7220 and 5341, that added together give a triangular number (12561 = T158).
The spelling of 72205341 in words is "seventy-two million, two hundred five thousand, three hundred forty-one".
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