Base | Representation |
---|---|
bin | 10010001111010011000010 |
3 | 22222220122100 |
4 | 102033103002 |
5 | 2211000000 |
6 | 250251230 |
7 | 55432335 |
oct | 22172302 |
9 | 8886570 |
10 | 4781250 |
11 | 2776251 |
12 | 1726b16 |
13 | cb5356 |
14 | 8c661c |
15 | 646a00 |
hex | 48f4c2 |
4781250 has 84 divisors (see below), whose sum is σ = 13710762. Its totient is φ = 1200000.
The previous prime is 4781243. The next prime is 4781323. The reversal of 4781250 is 521874.
It can be written as a sum of positive squares in 7 ways, for example, as 1846881 + 2934369 = 1359^2 + 1713^2 .
It is an alternating number because its digits alternate between even and odd.
It is a nialpdrome in base 5.
It is a zygodrome in base 5.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 281242 + ... + 281258.
Almost surely, 24781250 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 4781250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6855381).
4781250 is an abundant number, since it is smaller than the sum of its proper divisors (8929512).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
4781250 is an equidigital number, since it uses as much as digits as its factorization.
4781250 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 55 (or 27 counting only the distinct ones).
The product of its (nonzero) digits is 2240, while the sum is 27.
The square root of 4781250 is about 2186.6069605670. The cubic root of 4781250 is about 168.4666025201.
It can be divided in two parts, 478 and 1250, that added together give a cube (1728 = 123).
The spelling of 4781250 in words is "four million, seven hundred eighty-one thousand, two hundred fifty".
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