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23203002223 = 58133991571
BaseRepresentation
bin10101100111000000…
…011011011101101111
32012220001112122021201
4111213000123131233
5340004432032343
614354224510331
71450664156542
oct254700333557
965801478251
1023203002223
119927542aa5
1245b677b3a7
13225a157b1b
1411a1852859
1590c05d94d
hex56701b76f

23203002223 has 4 divisors (see below), whose sum is σ = 23206999608. Its totient is φ = 23199004840.

The previous prime is 23203002191. The next prime is 23203002247. The reversal of 23203002223 is 32220030232.

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 23203002223 - 25 = 23203002191 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23203002223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23203002923) 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, 1989973 + ... + 2001598.

It is an arithmetic number, because the mean of its divisors is an integer number (5801749902).

Almost surely, 223203002223 is an apocalyptic number.

23203002223 is a deficient number, since it is larger than the sum of its proper divisors (3997385).

23203002223 is an equidigital number, since it uses as much as digits as its factorization.

23203002223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3997384.

The product of its (nonzero) digits is 864, while the sum is 19.

Adding to 23203002223 its reverse (32220030232), we get a palindrome (55423032455).

The spelling of 23203002223 in words is "twenty-three billion, two hundred three million, two thousand, two hundred twenty-three".

Divisors: 1 5813 3991571 23203002223