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22163120563 = 31977370509
BaseRepresentation
bin10100101001000001…
…100110000110110011
32010012120211011211011
4110221001212012303
5330342224324223
614103120331351
71413136262563
oct245101460663
963176734734
1022163120563
11944355a571
124366473b57
132122895c2c
1411036c2da3
1589ab0080d
hex5290661b3

22163120563 has 8 divisors (see below), whose sum is σ = 23113919360. Its totient is φ = 21227063040.

The previous prime is 22163120557. The next prime is 22163120641. The reversal of 22163120563 is 36502136122.

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 22163120563 - 25 = 22163120531 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22163120533) 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, 3682248 + ... + 3688261.

It is an arithmetic number, because the mean of its divisors is an integer number (2889239920).

Almost surely, 222163120563 is an apocalyptic number.

22163120563 is a deficient number, since it is larger than the sum of its proper divisors (950798797).

22163120563 is an equidigital number, since it uses as much as digits as its factorization.

22163120563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7370637.

The product of its (nonzero) digits is 12960, while the sum is 31.

Adding to 22163120563 its reverse (36502136122), we get a palindrome (58665256685).

The spelling of 22163120563 in words is "twenty-two billion, one hundred sixty-three million, one hundred twenty thousand, five hundred sixty-three".

Divisors: 1 31 97 3007 7370509 228485779 714939373 22163120563