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20020022323 = 72860003189
BaseRepresentation
bin10010101001010010…
…010100110000110011
31220200020012111201021
4102221102110300303
5312000111203243
613110322320311
71306054245010
oct225122246063
956606174637
1020020022323
1185438650a4
123a687b9097
131b70898272
14d7cc18707
157c28c36ed
hex4a9494c33

20020022323 has 4 divisors (see below), whose sum is σ = 22880025520. Its totient is φ = 17160019128.

The previous prime is 20020022299. The next prime is 20020022339. The reversal of 20020022323 is 32322002002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32322002002 = 216161001001.

It is not a de Polignac number, because 20020022323 - 229 = 19483151411 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20020022297 and 20020022306.

It is not an unprimeable number, because it can be changed into a prime (20020022423) 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, 1430001588 + ... + 1430001601.

It is an arithmetic number, because the mean of its divisors is an integer number (5720006380).

Almost surely, 220020022323 is an apocalyptic number.

20020022323 is a deficient number, since it is larger than the sum of its proper divisors (2860003197).

20020022323 is an equidigital number, since it uses as much as digits as its factorization.

20020022323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2860003196.

The product of its (nonzero) digits is 288, while the sum is 16.

Adding to 20020022323 its reverse (32322002002), we get a palindrome (52342024325).

The spelling of 20020022323 in words is "twenty billion, twenty million, twenty-two thousand, three hundred twenty-three".

Divisors: 1 7 2860003189 20020022323