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20220243023 = 1923409113131
BaseRepresentation
bin10010110101001110…
…000110110001001111
31221012011221202212202
4102311032012301033
5312402340234043
613142233552115
71314035141561
oct226516066117
957164852782
1020220243023
118636888952
123b0387563b
131ba31cbb56
14d9b657331
157d52731b8
hex4b5386c4f

20220243023 has 16 divisors (see below), whose sum is σ = 22264377600. Its totient is φ = 18278187840.

The previous prime is 20220242989. The next prime is 20220243041. The reversal of 20220243023 is 32034202202.

It is a cyclic number.

It is not a de Polignac number, because 20220243023 - 232 = 15925275727 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20220242986 and 20220243004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20220243083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122168 + ... + 235298.

It is an arithmetic number, because the mean of its divisors is an integer number (1391523600).

Almost surely, 220220243023 is an apocalyptic number.

20220243023 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

20220243023 is a deficient number, since it is larger than the sum of its proper divisors (2044134577).

20220243023 is a wasteful number, since it uses less digits than its factorization.

20220243023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113582.

The product of its (nonzero) digits is 1152, while the sum is 20.

Adding to 20220243023 its reverse (32034202202), we get a palindrome (52254445225).

The spelling of 20220243023 in words is "twenty billion, two hundred twenty million, two hundred forty-three thousand, twenty-three".

Divisors: 1 19 23 409 437 7771 9407 113131 178733 2149489 2602013 46270579 49438247 879141001 1064223317 20220243023