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4230020 = 225211501
BaseRepresentation
bin10000001000101110000100
321221220111102
4100020232010
52040330040
6230355232
750645264
oct20105604
97856442
104230020
11242a093
1214bbb18
13b51492
147c17a4
15588515
hex408b84

4230020 has 12 divisors (see below), whose sum is σ = 8883084. Its totient is φ = 1692000.

The previous prime is 4230007. The next prime is 4230071. The reversal of 4230020 is 200324.

It can be written as a sum of positive squares in 2 ways, for example, as 2637376 + 1592644 = 1624^2 + 1262^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4229983 and 4230010.

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, 105731 + ... + 105770.

It is an arithmetic number, because the mean of its divisors is an integer number (740257).

Almost surely, 24230020 is an apocalyptic number.

It is an amenable number.

4230020 is an abundant number, since it is smaller than the sum of its proper divisors (4653064).

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

4230020 is a wasteful number, since it uses less digits than its factorization.

4230020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211510 (or 211508 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 4230020 is about 2056.7012422809. The cubic root of 4230020 is about 161.7263581374.

Adding to 4230020 its reverse (200324), we get a palindrome (4430344).

The spelling of 4230020 in words is "four million, two hundred thirty thousand, twenty".

Divisors: 1 2 4 5 10 20 211501 423002 846004 1057505 2115010 4230020