Search a number
-
+
4247020 = 2251311621
BaseRepresentation
bin10000001100110111101100
321222202211001
4100030313230
52041401040
6231010044
751045661
oct20146754
97882731
104247020
112440938
121509924
13b5913b
147c7a68
1558d59a
hex40cdec

4247020 has 24 divisors (see below), whose sum is σ = 8992368. Its totient is φ = 1684800.

The previous prime is 4247017. The next prime is 4247039. The reversal of 4247020 is 207424.

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1810 + ... + 3430.

It is an arithmetic number, because the mean of its divisors is an integer number (374682).

Almost surely, 24247020 is an apocalyptic number.

It is an amenable number.

4247020 is an abundant number, since it is smaller than the sum of its proper divisors (4745348).

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

4247020 is a wasteful number, since it uses less digits than its factorization.

4247020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1761 (or 1759 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 19.

The square root of 4247020 is about 2060.8299299069. The cubic root of 4247020 is about 161.9427222190.

The spelling of 4247020 in words is "four million, two hundred forty-seven thousand, twenty".

Divisors: 1 2 4 5 10 20 131 262 524 655 1310 1621 2620 3242 6484 8105 16210 32420 212351 424702 849404 1061755 2123510 4247020