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1004440111 = 1952865269
BaseRepresentation
bin111011110111101…
…000101000101111
32121000000211210121
4323313220220233
54024114040421
6243400345411
733614412553
oct7367505057
92530024717
101004440111
11475a867a4
12240475267
1313013317c
1497585863
155d2abd41
hex3bde8a2f

1004440111 has 4 divisors (see below), whose sum is σ = 1057305400. Its totient is φ = 951574824.

The previous prime is 1004440093. The next prime is 1004440117. The reversal of 1004440111 is 1110444001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1110444001 = 5771924513.

It is a cyclic number.

It is not a de Polignac number, because 1004440111 - 27 = 1004439983 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 (1004440117) 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, 26432616 + ... + 26432653.

It is an arithmetic number, because the mean of its divisors is an integer number (264326350).

Almost surely, 21004440111 is an apocalyptic number.

1004440111 is a deficient number, since it is larger than the sum of its proper divisors (52865289).

1004440111 is an equidigital number, since it uses as much as digits as its factorization.

1004440111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52865288.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1004440111 is about 31692.9031645888. The cubic root of 1004440111 is about 1001.4778518779.

Adding to 1004440111 its reverse (1110444001), we get a palindrome (2114884112).

The spelling of 1004440111 in words is "one billion, four million, four hundred forty thousand, one hundred eleven".

Divisors: 1 19 52865269 1004440111