Search a number
-
+
2131032229 = 171910165323
BaseRepresentation
bin111111100000100…
…1111100010100101
312111111220122122121
41333001033202211
513331021012404
6551243225541
7103544321644
oct17701174245
95444818577
102131032229
119a3a04067
124b58182b1
1327c664921
1416304735b
15c7146e54
hex7f04f8a5

2131032229 has 16 divisors (see below), whose sum is σ = 2398697280. Its totient is φ = 1881273600.

The previous prime is 2131032209. The next prime is 2131032247. The reversal of 2131032229 is 9222301312.

It is not a de Polignac number, because 2131032229 - 29 = 2131031717 is a prime.

It is a super-2 number, since 2×21310322292 = 9082596722073416882, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131032209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39 + ... + 65284.

It is an arithmetic number, because the mean of its divisors is an integer number (149918580).

Almost surely, 22131032229 is an apocalyptic number.

It is an amenable number.

2131032229 is a deficient number, since it is larger than the sum of its proper divisors (267665051).

2131032229 is a wasteful number, since it uses less digits than its factorization.

2131032229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65460.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 2131032229 is about 46163.1046291300. The cubic root of 2131032229 is about 1286.8561604972.

The spelling of 2131032229 in words is "two billion, one hundred thirty-one million, thirty-two thousand, two hundred twenty-nine".

Divisors: 1 17 19 101 323 1717 1919 32623 65323 1110491 1241137 6597623 21099329 112159591 125354837 2131032229