| Base | Representation |
|---|---|
| bin | 11010110100111… |
| … | …01101101000100 |
| 3 | 120200110021112000 |
| 4 | 31122131231010 |
| 5 | 430102304340 |
| 6 | 34155225300 |
| 7 | 5401550565 |
| oct | 1532355504 |
| 9 | 520407460 |
| 10 | 225041220 |
| 11 | 106036888 |
| 12 | 63448230 |
| 13 | 378141b1 |
| 14 | 21c6016c |
| 15 | 14b53d30 |
| hex | d69db44 |
225041220 has 96 divisors (see below), whose sum is σ = 708704640. Its totient is φ = 59276160.
The previous prime is 225041213. The next prime is 225041227. The reversal of 225041220 is 22140522.
225041220 is a `hidden beast` number, since 2 + 250 + 412 + 2 + 0 = 666.
It is an interprime number because it is at equal distance from previous prime (225041213) and next prime (225041227).
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 225041193 and 225041202.
It is not an unprimeable number, because it can be changed into a prime (225041227) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42310 + ... + 47330.
It is an arithmetic number, because the mean of its divisors is an integer number (7382340).
Almost surely, 2225041220 is an apocalyptic number.
225041220 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 225041220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (354352320).
225041220 is an abundant number, since it is smaller than the sum of its proper divisors (483663420).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
225041220 is a wasteful number, since it uses less digits than its factorization.
225041220 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5122 (or 5114 counting only the distinct ones).
The product of its (nonzero) digits is 320, while the sum is 18.
The square root of 225041220 is about 15001.3739370766. The cubic root of 225041220 is about 608.2573392696.
Adding to 225041220 its reverse (22140522), we get a palindrome (247181742).
The spelling of 225041220 in words is "two hundred twenty-five million, forty-one thousand, two hundred twenty".
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