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2223320231 = 111723516931
BaseRepresentation
bin1000010010000101…
…0010110010100111
312201221120100222202
42010201102302213
514023132221411
61004341245115
7106044624116
oct20441226247
95657510882
102223320231
11a41008440
1252070379b
13295808102
141713cbc7d
15d02c683b
hex84852ca7

2223320231 has 16 divisors (see below), whose sum is σ = 2679775488. Its totient is φ = 1819593600.

The previous prime is 2223320227. The next prime is 2223320237. The reversal of 2223320231 is 1320233222.

It is not a de Polignac number, because 2223320231 - 22 = 2223320227 is a prime.

It is a super-2 number, since 2×22233202312 = 9886305699147786722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2223320237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 254165 + ... + 262766.

It is an arithmetic number, because the mean of its divisors is an integer number (167485968).

Almost surely, 22223320231 is an apocalyptic number.

2223320231 is a deficient number, since it is larger than the sum of its proper divisors (456455257).

2223320231 is a wasteful number, since it uses less digits than its factorization.

2223320231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516982.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 2223320231 is about 47152.0967826458. The cubic root of 2223320231 is about 1305.1707729521.

Adding to 2223320231 its reverse (1320233222), we get a palindrome (3543553453).

The spelling of 2223320231 in words is "two billion, two hundred twenty-three million, three hundred twenty thousand, two hundred thirty-one".

Divisors: 1 11 17 23 187 253 391 4301 516931 5686241 8787827 11889413 96666097 130783543 202120021 2223320231