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1000223 = 7433323
BaseRepresentation
bin11110100001100011111
31212211001022
43310030133
5224001343
633234355
711334050
oct3641437
91784038
101000223
11623534
124029bb
13290363
141c0727
1514b568
hexf431f

1000223 has 8 divisors (see below), whose sum is σ = 1170048. Its totient is φ = 837144.

The previous prime is 1000213. The next prime is 1000231. The reversal of 1000223 is 3220001.

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

It is not a de Polignac number, because 1000223 - 26 = 1000159 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 1000223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000213) 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, 1361 + ... + 1962.

It is an arithmetic number, because the mean of its divisors is an integer number (146256).

21000223 is an apocalyptic number.

1000223 is a deficient number, since it is larger than the sum of its proper divisors (169825).

1000223 is an equidigital number, since it uses as much as digits as its factorization.

1000223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3373.

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 1000223 is about 1000.1114937846. Note that the first 3 decimals coincide. The cubic root of 1000223 is about 100.0074327809.

Adding to 1000223 its reverse (3220001), we get a palindrome (4220224).

The spelling of 1000223 in words is "one million, two hundred twenty-three", and thus it is an aban number.

Divisors: 1 7 43 301 3323 23261 142889 1000223