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23220422143 = 59587670471
BaseRepresentation
bin10101101000000010…
…111000010111111111
32012221021022122220221
4111220002320113333
5340023412002033
614400050122211
71451265221512
oct255002702777
965837278827
1023220422143
119936360926
124600580367
132260946a79
1411a3ca8d79
1590d85012d
hex5680b85ff

23220422143 has 8 divisors (see below), whose sum is σ = 23654252160. Its totient is φ = 22787934360.

The previous prime is 23220422081. The next prime is 23220422227. The reversal of 23220422143 is 34122402232.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-23220422143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23220422843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 300603 + ... + 369868.

It is an arithmetic number, because the mean of its divisors is an integer number (2956781520).

Almost surely, 223220422143 is an apocalyptic number.

23220422143 is a deficient number, since it is larger than the sum of its proper divisors (433830017).

23220422143 is an equidigital number, since it uses as much as digits as its factorization.

23220422143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671117.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 23220422143 its reverse (34122402232), we get a palindrome (57342824375).

The spelling of 23220422143 in words is "twenty-three billion, two hundred twenty million, four hundred twenty-two thousand, one hundred forty-three".

Divisors: 1 59 587 34633 670471 39557789 393566477 23220422143