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2131202441 = 7283292627
BaseRepresentation
bin111111100000111…
…1001000110001001
312111112020022010202
41333001321012021
513331041434231
6551251021545
7103545631124
oct17701710611
95445208122
102131202441
119a400aa35
124b589a8b5
1327c6c4244
1416308d3bb
15c717c5cb
hex7f079189

2131202441 has 4 divisors (see below), whose sum is σ = 2131502352. Its totient is φ = 2130902532.

The previous prime is 2131202429. The next prime is 2131202443. The reversal of 2131202441 is 1442021312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2131202441 - 26 = 2131202377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2131202443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139031 + ... + 153596.

It is an arithmetic number, because the mean of its divisors is an integer number (532875588).

Almost surely, 22131202441 is an apocalyptic number.

It is an amenable number.

2131202441 is a deficient number, since it is larger than the sum of its proper divisors (299911).

2131202441 is an equidigital number, since it uses as much as digits as its factorization.

2131202441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299910.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 2131202441 is about 46164.9481858260. The cubic root of 2131202441 is about 1286.8904212850.

Adding to 2131202441 its reverse (1442021312), we get a palindrome (3573223753).

The spelling of 2131202441 in words is "two billion, one hundred thirty-one million, two hundred two thousand, four hundred forty-one".

Divisors: 1 7283 292627 2131202441