Base | Representation |
---|---|
bin | 11001101000101… |
… | …00010001100000 |
3 | 112222122012221221 |
4 | 30310110101200 |
5 | 420022303440 |
6 | 33201024424 |
7 | 5220551020 |
oct | 1464242140 |
9 | 488565857 |
10 | 215041120 |
11 | 100426638 |
12 | 60025114 |
13 | 35722588 |
14 | 207b9a80 |
15 | 13d2ad4a |
hex | cd14460 |
215041120 has 96 divisors (see below), whose sum is σ = 586668096. Its totient is φ = 72960000.
The previous prime is 215041117. The next prime is 215041129. The reversal of 215041120 is 21140512.
It is a Harshad number since it is a multiple of its sum of digits (16).
It is a junction number, because it is equal to n+sod(n) for n = 215041094 and 215041103.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (215041129) 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, 112170 + ... + 114070.
It is an arithmetic number, because the mean of its divisors is an integer number (6111126).
Almost surely, 2215041120 is an apocalyptic number.
215041120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 215041120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (293334048).
215041120 is an abundant number, since it is smaller than the sum of its proper divisors (371626976).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
215041120 is a wasteful number, since it uses less digits than its factorization.
215041120 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2024 (or 2016 counting only the distinct ones).
The product of its (nonzero) digits is 80, while the sum is 16.
The square root of 215041120 is about 14664.2804119398. The cubic root of 215041120 is about 599.1108310968.
Adding to 215041120 its reverse (21140512), we get a palindrome (236181632).
The spelling of 215041120 in words is "two hundred fifteen million, forty-one thousand, one hundred twenty".
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