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20322233031 = 37279317851
BaseRepresentation
bin10010111011010011…
…001010101011000111
31221110021212101212110
4102323103022223013
5313104442424111
613200315552103
71316414062542
oct227323125307
957407771773
1020322233031
118689409511
123b31a5b633
131bbb38b379
14dab005859
157de1bc5a6
hex4bb4caac7

20322233031 has 8 divisors (see below), whose sum is σ = 27133585024. Its totient is φ = 13529518200.

The previous prime is 20322233003. The next prime is 20322233051. The reversal of 20322233031 is 13033222302.

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

It is not a de Polignac number, because 20322233031 - 29 = 20322232519 is a prime.

It is a super-2 number, since 2×203222330312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20322232989 and 20322233007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20322233051) 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, 4656745 + ... + 4661106.

It is an arithmetic number, because the mean of its divisors is an integer number (3391698128).

Almost surely, 220322233031 is an apocalyptic number.

20322233031 is a deficient number, since it is larger than the sum of its proper divisors (6811351993).

20322233031 is an equidigital number, since it uses as much as digits as its factorization.

20322233031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9318581.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 20322233031 its reverse (13033222302), we get a palindrome (33355455333).

The spelling of 20322233031 in words is "twenty billion, three hundred twenty-two million, two hundred thirty-three thousand, thirty-one".

Divisors: 1 3 727 2181 9317851 27953553 6774077677 20322233031