Search a number
-
+
13422033220 = 225671101661
BaseRepresentation
bin11001000000000001…
…11111100101000100
31021122101220221012111
430200000333211010
5204442020030340
610055504430404
7653416254121
oct144000774504
937571827174
1013422033220
11576842a242
122727018404
13135b958cbb
14914827748
15538518aea
hex32003f944

13422033220 has 12 divisors (see below), whose sum is σ = 28186269804. Its totient is φ = 5368813280.

The previous prime is 13422033179. The next prime is 13422033223. The reversal of 13422033220 is 2233022431.

It can be written as a sum of positive squares in 2 ways, for example, as 1598080576 + 11823952644 = 39976^2 + 108738^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13422033191 and 13422033200.

It is not an unprimeable number, because it can be changed into a prime (13422033223) 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 3 ways as a sum of consecutive naturals, for example, 335550811 + ... + 335550850.

It is an arithmetic number, because the mean of its divisors is an integer number (2348855817).

Almost surely, 213422033220 is an apocalyptic number.

13422033220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13422033220 is an abundant number, since it is smaller than the sum of its proper divisors (14764236584).

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

13422033220 is a wasteful number, since it uses less digits than its factorization.

13422033220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671101670 (or 671101668 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 13422033220 its reverse (2233022431), we get a palindrome (15655055651).

The spelling of 13422033220 in words is "thirteen billion, four hundred twenty-two million, thirty-three thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 671101661 1342203322 2684406644 3355508305 6711016610 13422033220