Base | Representation |
---|---|
bin | 10001001010101000100000 |
3 | 22110121211200 |
4 | 101022220200 |
5 | 2123000000 |
6 | 240241200 |
7 | 53151351 |
oct | 21125040 |
9 | 8417750 |
10 | 4500000 |
11 | 25a3a0a |
12 | 1610200 |
13 | c1732b |
14 | 851d28 |
15 | 5dd500 |
hex | 44aa20 |
4500000 has 126 divisors (see below), whose sum is σ = 15995889. Its totient is φ = 1200000.
The previous prime is 4499969. The next prime is 4500007. The reversal of 4500000 is 54.
It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.
It can be written as a sum of positive squares in 4 ways, for example, as 767376 + 3732624 = 876^2 + 1932^2 .
It is an ABA number since it can be written as A⋅BA, here for A=2, B=1500.
It is a Harshad number since it is a multiple of its sum of digits (9).
It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.
It is not an unprimeable number, because it can be changed into a prime (4500007) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 899998 + ... + 900002.
Almost surely, 24500000 is an apocalyptic number.
4500000 is a gapful number since it is divisible by the number (40) 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 4500000
4500000 is an abundant number, since it is smaller than the sum of its proper divisors (11495889).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
4500000 is an frugal number, since it uses more digits than its factorization.
4500000 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 46 (or 10 counting only the distinct ones).
The product of its (nonzero) digits is 20, while the sum is 9.
The square root of 4500000 is about 2121.3203435596. The cubic root of 4500000 is about 165.0963624447.
Adding to 4500000 its reverse (54), we get a palindrome (4500054).
The spelling of 4500000 in words is "four million, five hundred thousand".
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