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23310031223 = 54314292033
BaseRepresentation
bin10101101101011000…
…101101100101110111
32020011111221021110202
4111231120231211313
5340214331444343
614413010511115
71453433665463
oct255530554567
966144837422
1023310031223
1199819a5516
12462659549b
13227638caab
1411b1b534a3
15916650db8
hex56d62d977

23310031223 has 4 divisors (see below), whose sum is σ = 23314328688. Its totient is φ = 23305733760.

The previous prime is 23310031201. The next prime is 23310031271. The reversal of 23310031223 is 32213001332.

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 23310031223 - 222 = 23305836919 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23310031195 and 23310031204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23310031523) 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, 2140586 + ... + 2151447.

It is an arithmetic number, because the mean of its divisors is an integer number (5828582172).

Almost surely, 223310031223 is an apocalyptic number.

23310031223 is a deficient number, since it is larger than the sum of its proper divisors (4297465).

23310031223 is an equidigital number, since it uses as much as digits as its factorization.

23310031223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4297464.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 23310031223 its reverse (32213001332), we get a palindrome (55523032555).

The spelling of 23310031223 in words is "twenty-three billion, three hundred ten million, thirty-one thousand, two hundred twenty-three".

Divisors: 1 5431 4292033 23310031223