Search a number
-
+
2220021430 = 251120182013
BaseRepresentation
bin1000010001010010…
…1101011010110110
312201201100202212221
42010110231122312
514021311141210
61004142432554
7106004604454
oct20424553266
95651322787
102220021430
11a3a164a60
1251b59275a
13294c21763
14170bad9d4
15ced741da
hex8452d6b6

2220021430 has 16 divisors (see below), whose sum is σ = 4359315024. Its totient is φ = 807280480.

The previous prime is 2220021409. The next prime is 2220021473. The reversal of 2220021430 is 341200222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10090897 + ... + 10091116.

It is an arithmetic number, because the mean of its divisors is an integer number (272457189).

Almost surely, 22220021430 is an apocalyptic number.

2220021430 is a deficient number, since it is larger than the sum of its proper divisors (2139293594).

2220021430 is a wasteful number, since it uses less digits than its factorization.

2220021430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20182031.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 2220021430 is about 47117.1033702200. The cubic root of 2220021430 is about 1304.5249475865.

Adding to 2220021430 its reverse (341200222), we get a palindrome (2561221652).

The spelling of 2220021430 in words is "two billion, two hundred twenty million, twenty-one thousand, four hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 20182013 40364026 100910065 201820130 222002143 444004286 1110010715 2220021430