Base | Representation |
---|---|
bin | 11110010101101… |
… | …01110101111100 |
3 | 122201212221200002 |
4 | 33022311311330 |
5 | 1010123001340 |
6 | 41130453432 |
7 | 6210134102 |
oct | 1712656574 |
9 | 581787602 |
10 | 254500220 |
11 | 120727867 |
12 | 71294278 |
13 | 40959b60 |
14 | 25b2bc72 |
15 | 17522715 |
hex | f2b5d7c |
254500220 has 48 divisors (see below), whose sum is σ = 576828000. Its totient is φ = 93762816.
The previous prime is 254500219. The next prime is 254500229. The reversal of 254500220 is 22005452.
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 = 254500192 and 254500201.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (254500229) 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, 169031 + ... + 170529.
It is an arithmetic number, because the mean of its divisors is an integer number (12017250).
Almost surely, 2254500220 is an apocalyptic number.
254500220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
254500220 is an abundant number, since it is smaller than the sum of its proper divisors (322327780).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
254500220 is a wasteful number, since it uses less digits than its factorization.
254500220 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2174 (or 2172 counting only the distinct ones).
The product of its (nonzero) digits is 800, while the sum is 20.
The square root of 254500220 is about 15953.0630287729. The cubic root of 254500220 is about 633.7180162217.
Adding to 254500220 its reverse (22005452), we get a palindrome (276505672).
The spelling of 254500220 in words is "two hundred fifty-four million, five hundred thousand, two hundred twenty".
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