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23430220223 = 39089599407
BaseRepresentation
bin10101110100100011…
…001100100110111111
32020110220002111210012
4111310203030212333
5340441114021343
614432542533435
71456423404644
oct256443144677
966426074705
1023430220223
119a33826273
12465a89727b
132295251a47
1411c3abbdcb
15921e92718
hex5748cc9bf

23430220223 has 4 divisors (see below), whose sum is σ = 23430858720. Its totient is φ = 23429581728.

The previous prime is 23430220213. The next prime is 23430220237. The reversal of 23430220223 is 32202203432.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23430220223 - 230 = 22356478399 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 (23430220213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260615 + ... + 338792.

It is an arithmetic number, because the mean of its divisors is an integer number (5857714680).

Almost surely, 223430220223 is an apocalyptic number.

23430220223 is a deficient number, since it is larger than the sum of its proper divisors (638497).

23430220223 is an equidigital number, since it uses as much as digits as its factorization.

23430220223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638496.

The product of its (nonzero) digits is 3456, while the sum is 23.

Adding to 23430220223 its reverse (32202203432), we get a palindrome (55632423655).

The spelling of 23430220223 in words is "twenty-three billion, four hundred thirty million, two hundred twenty thousand, two hundred twenty-three".

Divisors: 1 39089 599407 23430220223