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2212210009 = 8232687983
BaseRepresentation
bin1000001111011011…
…1010010101011001
312201011122220122001
42003312322111121
514012311210014
61003303201001
7105551321602
oct20366722531
95634586561
102212210009
11a3580a139
12518a46161
13293418109
1416db38da9
15ce32e974
hex83dba559

2212210009 has 4 divisors (see below), whose sum is σ = 2214898816. Its totient is φ = 2209521204.

The previous prime is 2212209991. The next prime is 2212210027. The reversal of 2212210009 is 9000122122.

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 an interprime number because it is at equal distance from previous prime (2212209991) and next prime (2212210027).

It is a cyclic number.

It is not a de Polignac number, because 2212210009 - 217 = 2212078937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2212210069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1343169 + ... + 1344814.

It is an arithmetic number, because the mean of its divisors is an integer number (553724704).

Almost surely, 22212210009 is an apocalyptic number.

It is an amenable number.

2212210009 is a deficient number, since it is larger than the sum of its proper divisors (2688807).

2212210009 is an equidigital number, since it uses as much as digits as its factorization.

2212210009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2688806.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 2212210009 is about 47034.1366350016. The cubic root of 2212210009 is about 1302.9931051950.

It can be divided in two parts, 22122 and 10009, that added together give a triangular number (32131 = T253).

The spelling of 2212210009 in words is "two billion, two hundred twelve million, two hundred ten thousand, nine".

Divisors: 1 823 2687983 2212210009