Search a number
-
+
22030233220 = 2251101511661
BaseRepresentation
bin10100100001000110…
…101010111010000100
32002212022202210122201
4110201012222322010
5330104214430340
614042012204244
71406633615122
oct244106527204
962768683581
1022030233220
119385546316
124329a69684
1321011a9178
1410cdbb0912
1588e10179a
hex5211aae84

22030233220 has 12 divisors (see below), whose sum is σ = 46263489804. Its totient is φ = 8812093280.

The previous prime is 22030233209. The next prime is 22030233223. The reversal of 22030233220 is 2233203022.

It can be written as a sum of positive squares in 2 ways, for example, as 17230237696 + 4799995524 = 131264^2 + 69282^2 .

It is not an unprimeable number, because it can be changed into a prime (22030233223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 550755811 + ... + 550755850.

It is an arithmetic number, because the mean of its divisors is an integer number (3855290817).

Almost surely, 222030233220 is an apocalyptic number.

22030233220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22030233220 is an abundant number, since it is smaller than the sum of its proper divisors (24233256584).

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

22030233220 is a wasteful number, since it uses less digits than its factorization.

22030233220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101511670 (or 1101511668 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 19.

Adding to 22030233220 its reverse (2233203022), we get a palindrome (24263436242).

The spelling of 22030233220 in words is "twenty-two billion, thirty million, two hundred thirty-three thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 1101511661 2203023322 4406046644 5507558305 11015116610 22030233220