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23022233221 = 1317104173001
BaseRepresentation
bin10101011100001110…
…110110011010000101
32012102110101121211111
4111130032312122011
5334122142430341
614324250205021
71443340516321
oct253416663205
965373347744
1023022233221
1198444a5629
124566123771
13222b874c10
141185838981
158eb252681
hex55c3b6685

23022233221 has 8 divisors (see below), whose sum is σ = 26251596504. Its totient is φ = 20001216000.

The previous prime is 23022233209. The next prime is 23022233231. The reversal of 23022233221 is 12233222032.

It can be written as a sum of positive squares in 4 ways, for example, as 10022812996 + 12999420225 = 100114^2 + 114015^2 .

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 23022233221 - 25 = 23022233189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23022233192 and 23022233201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23022233231) 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, 52086280 + ... + 52086721.

It is an arithmetic number, because the mean of its divisors is an integer number (3281449563).

Almost surely, 223022233221 is an apocalyptic number.

It is an amenable number.

23022233221 is a deficient number, since it is larger than the sum of its proper divisors (3229363283).

23022233221 is a wasteful number, since it uses less digits than its factorization.

23022233221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104173031.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 23022233221 its reverse (12233222032), we get a palindrome (35255455253).

The spelling of 23022233221 in words is "twenty-three billion, twenty-two million, two hundred thirty-three thousand, two hundred twenty-one".

Divisors: 1 13 17 221 104173001 1354249013 1770941017 23022233221