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1040001223 = 8911685407
BaseRepresentation
bin111101111111010…
…010100011000111
32200110221112110211
4331333102203013
54112220014343
6251110500251
734525602352
oct7577224307
92613845424
101040001223
11494065348
12250364687
13137604451
149c1a1299
156148379d
hex3dfd28c7

1040001223 has 4 divisors (see below), whose sum is σ = 1051686720. Its totient is φ = 1028315728.

The previous prime is 1040001199. The next prime is 1040001227. The reversal of 1040001223 is 3221000401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3221000401 = 30791046119.

It is a cyclic number.

It is not a de Polignac number, because 1040001223 - 25 = 1040001191 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 (1040001227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5842615 + ... + 5842792.

It is an arithmetic number, because the mean of its divisors is an integer number (262921680).

Almost surely, 21040001223 is an apocalyptic number.

1040001223 is a deficient number, since it is larger than the sum of its proper divisors (11685497).

1040001223 is an equidigital number, since it uses as much as digits as its factorization.

1040001223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11685496.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1040001223 is about 32249.0499549987. The cubic root of 1040001223 is about 1013.1598009655.

Adding to 1040001223 its reverse (3221000401), we get a palindrome (4261001624).

The spelling of 1040001223 in words is "one billion, forty million, one thousand, two hundred twenty-three".

Divisors: 1 89 11685407 1040001223