Base | Representation |
---|---|
bin | 1000100111010… |
… | …00111000011101 |
3 | 12000222001001011 |
4 | 10103220320131 |
5 | 121444211203 |
6 | 11100415221 |
7 | 1535113651 |
oct | 423507035 |
9 | 160861034 |
10 | 72257053 |
11 | 37872880 |
12 | 20247511 |
13 | 11c7bc6b |
14 | 984ca61 |
15 | 652476d |
hex | 44e8e1d |
72257053 has 16 divisors (see below), whose sum is σ = 83203200. Its totient is φ = 62106880.
The previous prime is 72257027. The next prime is 72257069. The reversal of 72257053 is 35075227.
It is not a de Polignac number, because 72257053 - 217 = 72125981 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (72257093) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20913 + ... + 24121.
It is an arithmetic number, because the mean of its divisors is an integer number (5200200).
Almost surely, 272257053 is an apocalyptic number.
It is an amenable number.
72257053 is a deficient number, since it is larger than the sum of its proper divisors (10946147).
72257053 is a wasteful number, since it uses less digits than its factorization.
72257053 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3332.
The product of its (nonzero) digits is 14700, while the sum is 31.
The square root of 72257053 is about 8500.4148722283. The cubic root of 72257053 is about 416.5112615832.
It can be divided in two parts, 722 and 57053, that added together give a palindrome (57775).
The spelling of 72257053 in words is "seventy-two million, two hundred fifty-seven thousand, fifty-three".
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