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2231535245 = 5617316509
BaseRepresentation
bin1000010100000010…
…1000011010001101
312202112000201212112
42011000220122031
514032233111440
61005233313405
7106204510442
oct20500503215
95675021775
102231535245
11a45709505
12523405865
13297423374
141725299c9
15d0d9a965
hex8502868d

2231535245 has 8 divisors (see below), whose sum is σ = 2721741720. Its totient is φ = 1755961920.

The previous prime is 2231535227. The next prime is 2231535247. The reversal of 2231535245 is 5425351322.

It can be written as a sum of positive squares in 4 ways, for example, as 245674276 + 1985860969 = 15674^2 + 44563^2 .

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

It is not a de Polignac number, because 2231535245 - 28 = 2231534989 is a prime.

It is a super-3 number, since 3×22315352453 (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231535247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3657950 + ... + 3658559.

It is an arithmetic number, because the mean of its divisors is an integer number (340217715).

Almost surely, 22231535245 is an apocalyptic number.

It is an amenable number.

2231535245 is a deficient number, since it is larger than the sum of its proper divisors (490206475).

2231535245 is an equidigital number, since it uses as much as digits as its factorization.

2231535245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7316575.

The product of its digits is 36000, while the sum is 32.

The square root of 2231535245 is about 47239.1283259969. The cubic root of 2231535245 is about 1306.7763022841.

Adding to 2231535245 its reverse (5425351322), we get a palindrome (7656886567).

The spelling of 2231535245 in words is "two billion, two hundred thirty-one million, five hundred thirty-five thousand, two hundred forty-five".

Divisors: 1 5 61 305 7316509 36582545 446307049 2231535245