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4530220 = 225226511
BaseRepresentation
bin10001010010000000101100
322112011021221
4101102000230
52124431340
6241033124
753335432
oct21220054
98464257
104530220
112614692
1216257a4
13c28006
1485cd52
155e744a
hex45202c

4530220 has 12 divisors (see below), whose sum is σ = 9513504. Its totient is φ = 1812080.

The previous prime is 4530203. The next prime is 4530257. The reversal of 4530220 is 220354.

It is a junction number, because it is equal to n+sod(n) for n = 4530194 and 4530203.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 113236 + ... + 113275.

It is an arithmetic number, because the mean of its divisors is an integer number (792792).

Almost surely, 24530220 is an apocalyptic number.

It is an amenable number.

4530220 is an abundant number, since it is smaller than the sum of its proper divisors (4983284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4530220 is a wasteful number, since it uses less digits than its factorization.

4530220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226520 (or 226518 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 4530220 is about 2128.4313472602. The cubic root of 4530220 is about 165.4651094900.

Adding to 4530220 its reverse (220354), we get a palindrome (4750574).

The spelling of 4530220 in words is "four million, five hundred thirty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 226511 453022 906044 1132555 2265110 4530220