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2225085881 = 3795870939
BaseRepresentation
bin1000010010100000…
…0001110110111001
312202001220002000012
42010220001312321
514024110222011
61004443151305
7106065626564
oct20450016671
95661802005
102225085881
11a42003a57
12521215535
13295ca5985
1417172b4db
15d0524a8b
hex84a01db9

2225085881 has 4 divisors (see below), whose sum is σ = 2230957200. Its totient is φ = 2219214564.

The previous prime is 2225085809. The next prime is 2225085893. The reversal of 2225085881 is 1885805222.

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 2225085881 - 218 = 2224823737 is a prime.

It is a super-2 number, since 2×22250858812 = 9902014355651092322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2225085281) 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, 2935091 + ... + 2935848.

It is an arithmetic number, because the mean of its divisors is an integer number (557739300).

Almost surely, 22225085881 is an apocalyptic number.

It is an amenable number.

2225085881 is a deficient number, since it is larger than the sum of its proper divisors (5871319).

2225085881 is an equidigital number, since it uses as much as digits as its factorization.

2225085881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5871318.

The product of its (nonzero) digits is 102400, while the sum is 41.

The square root of 2225085881 is about 47170.8159882782. The cubic root of 2225085881 is about 1305.5161820358.

The spelling of 2225085881 in words is "two billion, two hundred twenty-five million, eighty-five thousand, eight hundred eighty-one".

Divisors: 1 379 5870939 2225085881