Search a number
-
+
2020122320 = 24525251529
BaseRepresentation
bin111100001101000…
…1001111011010000
312012210012211212012
41320122021323100
513114122403240
6532242122052
7101026520306
oct17032117320
95183184765
102020122320
11947340887
12484650328
132626a1368
14152416276
15bc539b65
hex78689ed0

2020122320 has 20 divisors (see below), whose sum is σ = 4696784580. Its totient is φ = 808048896.

The previous prime is 2020122319. The next prime is 2020122323. The reversal of 2020122320 is 232210202.

It can be written as a sum of positive squares in 2 ways, for example, as 460188304 + 1559934016 = 21452^2 + 39496^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 2020122295 and 2020122304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020122323) 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, 12625685 + ... + 12625844.

It is an arithmetic number, because the mean of its divisors is an integer number (234839229).

Almost surely, 22020122320 is an apocalyptic number.

2020122320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2020122320 is an abundant number, since it is smaller than the sum of its proper divisors (2676662260).

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

2020122320 is a wasteful number, since it uses less digits than its factorization.

2020122320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25251542 (or 25251536 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 2020122320 is about 44945.7708800283. The cubic root of 2020122320 is about 1264.1323801159.

Adding to 2020122320 its reverse (232210202), we get a palindrome (2252332522).

The spelling of 2020122320 in words is "two billion, twenty million, one hundred twenty-two thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 25251529 50503058 101006116 126257645 202012232 252515290 404024464 505030580 1010061160 2020122320