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2211232213 = 234119711903
BaseRepresentation
bin1000001111001100…
…1011100111010101
312201002211020100101
42003303023213111
514012033412323
61003230214101
7105540110101
oct20363134725
95632736311
102211232213
11a35201543
12518654331
13293165038
1416d962901
15ce1d9dad
hex83ccb9d5

2211232213 has 16 divisors (see below), whose sum is σ = 2375847936. Its totient is φ = 2052856960.

The previous prime is 2211232183. The next prime is 2211232229. The reversal of 2211232213 is 3122321122.

It is a cyclic number.

It is not a de Polignac number, because 2211232213 - 25 = 2211232181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211232913) 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 15 ways as a sum of consecutive naturals, for example, 179820 + ... + 191722.

It is an arithmetic number, because the mean of its divisors is an integer number (148490496).

Almost surely, 22211232213 is an apocalyptic number.

2211232213 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2211232213 is a deficient number, since it is larger than the sum of its proper divisors (164615723).

2211232213 is a wasteful number, since it uses less digits than its factorization.

2211232213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12164.

The product of its digits is 288, while the sum is 19.

The square root of 2211232213 is about 47023.7409507155. The cubic root of 2211232213 is about 1302.8011027482.

Adding to 2211232213 its reverse (3122321122), we get a palindrome (5333553335).

The spelling of 2211232213 in words is "two billion, two hundred eleven million, two hundred thirty-two thousand, two hundred thirteen".

Divisors: 1 23 41 197 943 4531 8077 11903 185771 273769 488023 2344891 11224529 53932493 96140531 2211232213