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20222133231 = 329232438313
BaseRepresentation
bin10010110101010101…
…010100001111101111
31221012022111210202110
4102311111110033233
5312403331230411
613142342255103
71314060203436
oct226525241757
957168453673
1020222133231
11863795a003
123b04427493
131ba3711311
14d9b9ca11d
157d54e82a6
hex4b55543ef

20222133231 has 8 divisors (see below), whose sum is σ = 27892597680. Its totient is φ = 13016545472.

The previous prime is 20222133223. The next prime is 20222133259. The reversal of 20222133231 is 13233122202.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20222133231 - 23 = 20222133223 is a prime.

It is a super-2 number, since 2×202221332312 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20222133198 and 20222133207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20222135231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116219070 + ... + 116219243.

It is an arithmetic number, because the mean of its divisors is an integer number (3486574710).

Almost surely, 220222133231 is an apocalyptic number.

20222133231 is a deficient number, since it is larger than the sum of its proper divisors (7670464449).

20222133231 is a wasteful number, since it uses less digits than its factorization.

20222133231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232438345.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 20222133231 its reverse (13233122202), we get a palindrome (33455255433).

The spelling of 20222133231 in words is "twenty billion, two hundred twenty-two million, one hundred thirty-three thousand, two hundred thirty-one".

Divisors: 1 3 29 87 232438313 697314939 6740711077 20222133231