| Base | Representation |
|---|---|
| bin | 11010111000101… |
| … | …11011110110100 |
| 3 | 120201101121202002 |
| 4 | 31130113132310 |
| 5 | 430214240040 |
| 6 | 34214034432 |
| 7 | 5406026036 |
| oct | 1534273664 |
| 9 | 521347662 |
| 10 | 225540020 |
| 11 | 106347612 |
| 12 | 63648a18 |
| 13 | 3795a244 |
| 14 | 21d4dc56 |
| 15 | 14c01a15 |
| hex | d7177b4 |
225540020 has 48 divisors (see below), whose sum is σ = 508612608. Its totient is φ = 83704320.
The previous prime is 225540019. The next prime is 225540041. The reversal of 225540020 is 20045522.
225540020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (20).
It is a junction number, because it is equal to n+sod(n) for n = 225539974 and 225540001.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19469 + ... + 28811.
It is an arithmetic number, because the mean of its divisors is an integer number (10596096).
Almost surely, 2225540020 is an apocalyptic number.
225540020 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 225540020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (254306304).
225540020 is an abundant number, since it is smaller than the sum of its proper divisors (283072588).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
225540020 is a wasteful number, since it uses less digits than its factorization.
225540020 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9440 (or 9438 counting only the distinct ones).
The product of its (nonzero) digits is 800, while the sum is 20.
The square root of 225540020 is about 15017.9898788087. The cubic root of 225540020 is about 608.7064049668.
Adding to 225540020 its reverse (20045522), we get a palindrome (245585542).
The spelling of 225540020 in words is "two hundred twenty-five million, five hundred forty thousand, twenty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •