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20110044001 = 79254557519
BaseRepresentation
bin10010101110101001…
…101110101101100001
31220220111121002020111
4102232221232231201
5312141132402001
613123300011321
71311226360615
oct225651565541
956814532214
1020110044001
11858a660783
123a92990b41
131b86427028
14d8ab6d345
157ca756851
hex4aea6eb61

20110044001 has 4 divisors (see below), whose sum is σ = 20364601600. Its totient is φ = 19855486404.

The previous prime is 20110043999. The next prime is 20110044041. The reversal of 20110044001 is 10044001102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20110044001 - 21 = 20110043999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20110044041) 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, 127278681 + ... + 127278838.

It is an arithmetic number, because the mean of its divisors is an integer number (5091150400).

Almost surely, 220110044001 is an apocalyptic number.

It is an amenable number.

20110044001 is a deficient number, since it is larger than the sum of its proper divisors (254557599).

20110044001 is an equidigital number, since it uses as much as digits as its factorization.

20110044001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254557598.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20110044001 its reverse (10044001102), we get a palindrome (30154045103).

The spelling of 20110044001 in words is "twenty billion, one hundred ten million, forty-four thousand, one".

Divisors: 1 79 254557519 20110044001