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2131102241 = 8923944969
BaseRepresentation
bin111111100000110…
…0000101000100001
312111112001012200122
41333001200220201
513331030232431
6551244530025
7103545033032
oct17701405041
95445035618
102131102241
119a3a51724
124b5850915
1327c68a758
14163064a89
15c715ca7b
hex7f060a21

2131102241 has 4 divisors (see below), whose sum is σ = 2155047300. Its totient is φ = 2107157184.

The previous prime is 2131102229. The next prime is 2131102313. The reversal of 2131102241 is 1422011312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 756250000 + 1374852241 = 27500^2 + 37079^2 .

It is a cyclic number.

It is not a de Polignac number, because 2131102241 - 26 = 2131102177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2131108241) 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, 11972396 + ... + 11972573.

It is an arithmetic number, because the mean of its divisors is an integer number (538761825).

Almost surely, 22131102241 is an apocalyptic number.

It is an amenable number.

2131102241 is a deficient number, since it is larger than the sum of its proper divisors (23945059).

2131102241 is an equidigital number, since it uses as much as digits as its factorization.

2131102241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23945058.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 2131102241 is about 46163.8629341176. The cubic root of 2131102241 is about 1286.8702529458.

Adding to 2131102241 its reverse (1422011312), we get a palindrome (3553113553).

The spelling of 2131102241 in words is "two billion, one hundred thirty-one million, one hundred two thousand, two hundred forty-one".

Divisors: 1 89 23944969 2131102241