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2132234221 = 131143714341
BaseRepresentation
bin111111100010111…
…0100111111101101
312111121011201110211
41333011310333231
513331322443341
6551325102421
7103560456205
oct17705647755
95447151424
102132234221
119a4655147
124b60b7a11
1327c995a70
1416327b405
15c72d3181
hex7f174fed

2132234221 has 8 divisors (see below), whose sum is σ = 2296613144. Its totient is φ = 1967906880.

The previous prime is 2132234201. The next prime is 2132234239. The reversal of 2132234221 is 1224322312.

It can be written as a sum of positive squares in 4 ways, for example, as 115326121 + 2016908100 = 10739^2 + 44910^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2132234221 - 213 = 2132226029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2132234192 and 2132234201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2132234201) 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, 141511 + ... + 155851.

It is an arithmetic number, because the mean of its divisors is an integer number (287076643).

Almost surely, 22132234221 is an apocalyptic number.

It is an amenable number.

2132234221 is a deficient number, since it is larger than the sum of its proper divisors (164378923).

2132234221 is a wasteful number, since it uses less digits than its factorization.

2132234221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25791.

The product of its digits is 1152, while the sum is 22.

The square root of 2132234221 is about 46176.1217622268. The cubic root of 2132234221 is about 1287.0980620605.

Adding to 2132234221 its reverse (1224322312), we get a palindrome (3356556533).

The spelling of 2132234221 in words is "two billion, one hundred thirty-two million, two hundred thirty-four thousand, two hundred twenty-one".

Divisors: 1 13 11437 14341 148681 186433 164018017 2132234221