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2220112331 = 17197366191
BaseRepresentation
bin1000010001010100…
…0011100111001011
312201201112101120122
42010111003213023
514021322043311
61004144413455
7106005433463
oct20425034713
95651471518
102220112331
11a3a217288
1251b61728b
13294c53c48
14170bd4ba3
15ced910db
hex845439cb

2220112331 has 8 divisors (see below), whose sum is σ = 2351934144. Its totient is φ = 2088426880.

The previous prime is 2220112253. The next prime is 2220112333. The reversal of 2220112331 is 1332110222.

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

It is not a de Polignac number, because 2220112331 - 230 = 1146370507 is a prime.

It is a super-2 number, since 2×22201123312 = 9857797524516507122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2220112333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 446 + ... + 66636.

It is an arithmetic number, because the mean of its divisors is an integer number (293991768).

Almost surely, 22220112331 is an apocalyptic number.

2220112331 is a deficient number, since it is larger than the sum of its proper divisors (131821813).

2220112331 is a wasteful number, since it uses less digits than its factorization.

2220112331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68181.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2220112331 is about 47118.0679888299. The cubic root of 2220112331 is about 1304.5427523701.

Adding to 2220112331 its reverse (1332110222), we get a palindrome (3552222553).

The spelling of 2220112331 in words is "two billion, two hundred twenty million, one hundred twelve thousand, three hundred thirty-one".

Divisors: 1 17 1973 33541 66191 1125247 130594843 2220112331