Base | Representation |
---|---|
bin | 11110010010101… |
… | …00101011001100 |
3 | 122201010201201100 |
4 | 33021110223030 |
5 | 1010022232340 |
6 | 41114143100 |
7 | 6203555541 |
oct | 1711245314 |
9 | 581121640 |
10 | 254102220 |
11 | 120485839 |
12 | 71121a90 |
13 | 4084a958 |
14 | 25a66bc8 |
15 | 17494830 |
hex | f254acc |
254102220 has 36 divisors (see below), whose sum is σ = 770777280. Its totient is φ = 67760544.
The previous prime is 254102207. The next prime is 254102249. The reversal of 254102220 is 22201452.
254102220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a tau number, because it is divible by the number of its divisors (36).
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 = 254102193 and 254102202.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 705660 + ... + 706019.
It is an arithmetic number, because the mean of its divisors is an integer number (21410480).
Almost surely, 2254102220 is an apocalyptic number.
254102220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
254102220 is an abundant number, since it is smaller than the sum of its proper divisors (516675060).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
254102220 is a wasteful number, since it uses less digits than its factorization.
254102220 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1411694 (or 1411689 counting only the distinct ones).
The product of its (nonzero) digits is 320, while the sum is 18.
The square root of 254102220 is about 15940.5840545446. The cubic root of 254102220 is about 633.3874973683.
Adding to 254102220 its reverse (22201452), we get a palindrome (276303672).
The spelling of 254102220 in words is "two hundred fifty-four million, one hundred two thousand, two hundred twenty".
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