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2005875371081 = 16071330993787
BaseRepresentation
bin11101001100000111011…
…111010010110001001001
321002202111220101121220102
4131030013133102301021
5230331013043333311
64133253022335145
7264630314222561
oct35140737226111
97082456347812
102005875371081
1170376139906a
1228490372a4b5
131171cb8752ca
146d128cd9da1
153729dbe843b
hex1d3077d2c49

2005875371081 has 8 divisors (see below), whose sum is σ = 2007295794240. Its totient is φ = 2004455165328.

The previous prime is 2005875371063. The next prime is 2005875371119. The reversal of 2005875371081 is 1801735785002.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2005875371081 is a prime.

It is a super-2 number, since 2×20058753710812 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2005875371021) 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, 21340670 + ... + 21434456.

It is an arithmetic number, because the mean of its divisors is an integer number (250911974280).

Almost surely, 22005875371081 is an apocalyptic number.

It is an amenable number.

2005875371081 is a deficient number, since it is larger than the sum of its proper divisors (1420423159).

2005875371081 is a wasteful number, since it uses less digits than its factorization.

2005875371081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108703.

The product of its (nonzero) digits is 470400, while the sum is 47.

The spelling of 2005875371081 in words is "two trillion, five billion, eight hundred seventy-five million, three hundred seventy-one thousand, eighty-one".

Divisors: 1 1607 13309 93787 21387563 150715709 1248211183 2005875371081