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20030322223 = 26376160921
BaseRepresentation
bin10010101001111001…
…100111011000101111
31220200221120210112001
4102221321213120233
5312010230302343
613111331153131
71306240633612
oct225171473057
956627523461
1020030322223
11854965a60a
123a701457a7
131b72a63492
14d8033a179
157c375a44d
hex4a9e6762f

20030322223 has 4 divisors (see below), whose sum is σ = 20106483408. Its totient is φ = 19954161040.

The previous prime is 20030322217. The next prime is 20030322239. The reversal of 20030322223 is 32222303002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32222303002 = 216111151501.

It is a cyclic number.

It is not a de Polignac number, because 20030322223 - 217 = 20030191151 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20030322223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20030322293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38080198 + ... + 38080723.

It is an arithmetic number, because the mean of its divisors is an integer number (5026620852).

Almost surely, 220030322223 is an apocalyptic number.

20030322223 is a deficient number, since it is larger than the sum of its proper divisors (76161185).

20030322223 is an equidigital number, since it uses as much as digits as its factorization.

20030322223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76161184.

The product of its (nonzero) digits is 864, while the sum is 19.

Adding to 20030322223 its reverse (32222303002), we get a palindrome (52252625225).

The spelling of 20030322223 in words is "twenty billion, thirty million, three hundred twenty-two thousand, two hundred twenty-three".

Divisors: 1 263 76160921 20030322223