Search a number
-
+
2130303220 = 225191557671
BaseRepresentation
bin111111011111001…
…1101100011110100
312111110112121122021
41332332131203310
513330324200340
6551215442524
7103535164363
oct17676354364
95443477567
102130303220
119a3556381
124b5526444
1327c46ab66
14162cd77da
15c7050e4a
hex7ef9d8f4

2130303220 has 24 divisors (see below), whose sum is σ = 4497067008. Its totient is φ = 847658400.

The previous prime is 2130303187. The next prime is 2130303221. The reversal of 2130303220 is 223030312.

It is a junction number, because it is equal to n+sod(n) for n = 2130303194 and 2130303203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130303221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 275016 + ... + 282655.

It is an arithmetic number, because the mean of its divisors is an integer number (187377792).

Almost surely, 22130303220 is an apocalyptic number.

2130303220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2130303220 is an abundant number, since it is smaller than the sum of its proper divisors (2366763788).

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

2130303220 is a wasteful number, since it uses less digits than its factorization.

2130303220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557871 (or 557869 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 2130303220 is about 46155.2079401664. The cubic root of 2130303220 is about 1286.7094027107.

Adding to 2130303220 its reverse (223030312), we get a palindrome (2353333532).

The spelling of 2130303220 in words is "two billion, one hundred thirty million, three hundred three thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 191 382 764 955 1910 3820 557671 1115342 2230684 2788355 5576710 11153420 106515161 213030322 426060644 532575805 1065151610 2130303220