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1023112223 = 7146158889
BaseRepresentation
bin111100111110110…
…111010000011111
32122022011111010022
4330332313100133
54043404042343
6245304502355
734232211320
oct7476672037
92568144108
101023112223
1148557a3a1
1224677a9bb
13133c70063
1499c46447
155ec49568
hex3cfb741f

1023112223 has 4 divisors (see below), whose sum is σ = 1169271120. Its totient is φ = 876953328.

The previous prime is 1023112217. The next prime is 1023112229. The reversal of 1023112223 is 3222113201.

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

It is an interprime number because it is at equal distance from previous prime (1023112217) and next prime (1023112229).

It is a cyclic number.

It is not a de Polignac number, because 1023112223 - 214 = 1023095839 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 (1023112229) 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, 73079438 + ... + 73079451.

It is an arithmetic number, because the mean of its divisors is an integer number (292317780).

Almost surely, 21023112223 is an apocalyptic number.

1023112223 is a deficient number, since it is larger than the sum of its proper divisors (146158897).

1023112223 is an equidigital number, since it uses as much as digits as its factorization.

1023112223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146158896.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1023112223 is about 31986.1254765250. The cubic root of 1023112223 is about 1007.6454721218.

Adding to 1023112223 its reverse (3222113201), we get a palindrome (4245225424).

The spelling of 1023112223 in words is "one billion, twenty-three million, one hundred twelve thousand, two hundred twenty-three".

Divisors: 1 7 146158889 1023112223