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2203012091 = 7793983747
BaseRepresentation
bin1000001101001111…
…0100101111111011
312200112100121110102
42003103310233323
514002432341331
61002334110015
7105410202530
oct20323645773
95615317412
102203012091
11a305a7655
1251594b30b
13291547667
1416c822d87
15cd6144cb
hex834f4bfb

2203012091 has 8 divisors (see below), whose sum is σ = 2549598720. Its totient is φ = 1864393128.

The previous prime is 2203012087. The next prime is 2203012093. The reversal of 2203012091 is 1902103022.

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

It is a cyclic number.

It is not a de Polignac number, because 2203012091 - 22 = 2203012087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2203012093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1991321 + ... + 1992426.

It is an arithmetic number, because the mean of its divisors is an integer number (318699840).

Almost surely, 22203012091 is an apocalyptic number.

2203012091 is a deficient number, since it is larger than the sum of its proper divisors (346586629).

2203012091 is an equidigital number, since it uses as much as digits as its factorization.

2203012091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3983833.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 2203012091 is about 46936.2556133316. The cubic root of 2203012091 is about 1301.1847367441.

The spelling of 2203012091 in words is "two billion, two hundred three million, twelve thousand, ninety-one".

Divisors: 1 7 79 553 3983747 27886229 314716013 2203012091