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2001032011 = 11181912001
BaseRepresentation
bin111011101000101…
…0101001101001011
312011110021221212201
41313101111031023
513044231011021
6530321021031
7100405330366
oct16721251513
95143257781
102001032011
11937591a70
1247a184777
1325b749014
1414da870dd
15baa18591
hex7745534b

2001032011 has 4 divisors (see below), whose sum is σ = 2182944024. Its totient is φ = 1819120000.

The previous prime is 2001032009. The next prime is 2001032017. The reversal of 2001032011 is 1102301002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2001032011 - 21 = 2001032009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2001032017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90955990 + ... + 90956011.

It is an arithmetic number, because the mean of its divisors is an integer number (545736006).

Almost surely, 22001032011 is an apocalyptic number.

2001032011 is a deficient number, since it is larger than the sum of its proper divisors (181912013).

2001032011 is a wasteful number, since it uses less digits than its factorization.

2001032011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181912012.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 2001032011 is about 44732.8962956793. The cubic root of 2001032011 is about 1260.1377213617.

Adding to 2001032011 its reverse (1102301002), we get a palindrome (3103333013).

The spelling of 2001032011 in words is "two billion, one million, thirty-two thousand, eleven".

Divisors: 1 11 181912001 2001032011