Search a number
-
+
2323201220 = 2251572812633
BaseRepresentation
bin1000101001111001…
…0011110011000100
312222220111211221122
42022132103303010
514224214414340
61022310133112
7111366612254
oct21236236304
95886454848
102323201220
11a9242850a
1254a051198
132b04096a2
1418078b964
15d8e55db5
hex8a793cc4

2323201220 has 48 divisors (see below), whose sum is σ = 4929141168. Its totient is φ = 919726080.

The previous prime is 2323201219. The next prime is 2323201229. The reversal of 2323201220 is 221023232.

It can be written as a sum of positive squares in 8 ways, for example, as 168013444 + 2155187776 = 12962^2 + 46424^2 .

It is not an unprimeable number, because it can be changed into a prime (2323201229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 881024 + ... + 883656.

It is an arithmetic number, because the mean of its divisors is an integer number (102690441).

Almost surely, 22323201220 is an apocalyptic number.

2323201220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2323201220 is an abundant number, since it is smaller than the sum of its proper divisors (2605939948).

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

2323201220 is a wasteful number, since it uses less digits than its factorization.

2323201220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3080 (or 3078 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 2323201220 is about 48199.5977161636. The cubic root of 2323201220 is about 1324.4297952353.

Adding to 2323201220 its reverse (221023232), we get a palindrome (2544224452).

The spelling of 2323201220 in words is "two billion, three hundred twenty-three million, two hundred one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 157 281 314 562 628 785 1124 1405 1570 2633 2810 3140 5266 5620 10532 13165 26330 44117 52660 88234 176468 220585 413381 441170 739873 826762 882340 1479746 1653524 2066905 2959492 3699365 4133810 7398730 8267620 14797460 116160061 232320122 464640244 580800305 1161600610 2323201220