Search a number
-
+
2032221220 = 225671516583
BaseRepresentation
bin111100100100001…
…0011110000100100
312020121222112102121
41321020103300210
513130222034340
6533353315324
7101234411131
oct17110236044
95217875377
102032221220
11953154977
12488705b44
13265049383
14153c85588
15bd62994a
hex79213c24

2032221220 has 24 divisors (see below), whose sum is σ = 4331363904. Its totient is φ = 800755296.

The previous prime is 2032221199. The next prime is 2032221221. The reversal of 2032221220 is 221222302.

It is a junction number, because it is equal to n+sod(n) for n = 2032221194 and 2032221203.

It is not an unprimeable number, because it can be changed into a prime (2032221221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 756952 + ... + 759631.

It is an arithmetic number, because the mean of its divisors is an integer number (180473496).

Almost surely, 22032221220 is an apocalyptic number.

2032221220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2032221220 is an abundant number, since it is smaller than the sum of its proper divisors (2299142684).

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

2032221220 is a wasteful number, since it uses less digits than its factorization.

2032221220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1516659 (or 1516657 counting only the distinct ones).

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

The square root of 2032221220 is about 45080.1643741458. The cubic root of 2032221220 is about 1266.6510689061.

Adding to 2032221220 its reverse (221222302), we get a palindrome (2253443522).

The spelling of 2032221220 in words is "two billion, thirty-two million, two hundred twenty-one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 67 134 268 335 670 1340 1516583 3033166 6066332 7582915 15165830 30331660 101611061 203222122 406444244 508055305 1016110610 2032221220