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1023213223 = 5960728571
BaseRepresentation
bin111100111111001…
…111111010100111
32122022100121200001
4330333033322213
54043420310343
6245311002131
734233111634
oct7477177247
92568317601
101023213223
1148563926a
12246809347
13133ca7016
1499c7118b
155ec6944d
hex3cfcfea7

1023213223 has 8 divisors (see below), whose sum is σ = 1042306560. Its totient is φ = 1004178360.

The previous prime is 1023213203. The next prime is 1023213229. The reversal of 1023213223 is 3223123201.

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

It is a cyclic number.

It is not a de Polignac number, because 1023213223 - 213 = 1023205031 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 1023213223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023213229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21528 + ... + 50098.

It is an arithmetic number, because the mean of its divisors is an integer number (130288320).

Almost surely, 21023213223 is an apocalyptic number.

1023213223 is a deficient number, since it is larger than the sum of its proper divisors (19093337).

1023213223 is an equidigital number, since it uses as much as digits as its factorization.

1023213223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29237.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1023213223 is about 31987.7042471009. The cubic root of 1023213223 is about 1007.6786287465.

Adding to 1023213223 its reverse (3223123201), we get a palindrome (4246336424).

The spelling of 1023213223 in words is "one billion, twenty-three million, two hundred thirteen thousand, two hundred twenty-three".

Divisors: 1 59 607 28571 35813 1685689 17342597 1023213223