Search a number
-
+
131320302222 = 23157139405841
BaseRepresentation
bin111101001001101001…
…1001100101010001110
3110112221221022112210010
41322103103030222032
54122420444132342
6140154441454050
712326145102654
oct1722323145216
9415857275703
10131320302222
115076898379a
122154aaa1326
13c4ca59a655
1464da992dd4
153638c1429c
hex1e934cca8e

131320302222 has 16 divisors (see below), whose sum is σ = 264313476432. Its totient is φ = 43494622080.

The previous prime is 131320302199. The next prime is 131320302251. The reversal of 131320302222 is 222203023131.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69701979 + ... + 69703862.

It is an arithmetic number, because the mean of its divisors is an integer number (16519592277).

Almost surely, 2131320302222 is an apocalyptic number.

131320302222 is an abundant number, since it is smaller than the sum of its proper divisors (132993174210).

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

131320302222 is a wasteful number, since it uses less digits than its factorization.

131320302222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139406003.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 131320302222 its reverse (222203023131), we get a palindrome (353523325353).

The spelling of 131320302222 in words is "one hundred thirty-one billion, three hundred twenty million, three hundred two thousand, two hundred twenty-two".

Divisors: 1 2 3 6 157 314 471 942 139405841 278811682 418217523 836435046 21886717037 43773434074 65660151111 131320302222