Base | Representation |
---|---|
bin | 1101010110101… |
… | …00101000110101 |
3 | 21210210012120200 |
4 | 12223110220311 |
5 | 212134120041 |
6 | 15040551113 |
7 | 2530103661 |
oct | 653245065 |
9 | 253705520 |
10 | 112020021 |
11 | 58261333 |
12 | 31622499 |
13 | 1a291949 |
14 | 10c3d8a1 |
15 | 9c7b1b6 |
hex | 6ad4a35 |
112020021 has 12 divisors (see below), whose sum is σ = 171324972. Its totient is φ = 70286976.
The previous prime is 112019993. The next prime is 112020043. The reversal of 112020021 is 120020211.
It can be written as a sum of positive squares in 2 ways, for example, as 68657796 + 43362225 = 8286^2 + 6585^2 .
It is not a de Polignac number, because 112020021 - 213 = 112011829 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (9).
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 112019985 and 112020012.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (112020061) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 365926 + ... + 366231.
It is an arithmetic number, because the mean of its divisors is an integer number (14277081).
Almost surely, 2112020021 is an apocalyptic number.
It is an amenable number.
112020021 is a deficient number, since it is larger than the sum of its proper divisors (59304951).
112020021 is a wasteful number, since it uses less digits than its factorization.
112020021 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 732180 (or 732177 counting only the distinct ones).
The product of its (nonzero) digits is 8, while the sum is 9.
The square root of 112020021 is about 10583.9511053292. The cubic root of 112020021 is about 482.0571734204.
Adding to 112020021 its reverse (120020211), we get a palindrome (232040232).
The spelling of 112020021 in words is "one hundred twelve million, twenty thousand, twenty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.063 sec. • engine limits •