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2081983855 = 5759485253
BaseRepresentation
bin111110000011000…
…1000110101101111
312101002121201221011
41330012020311233
513230441440410
6542332050051
7102410366530
oct17406106557
95332551834
102081983855
11979253316
124a1303927
13272450713
1415a71a687
15c2ba918a
hex7c188d6f

2081983855 has 8 divisors (see below), whose sum is σ = 2855292192. Its totient is φ = 1427646048.

The previous prime is 2081983837. The next prime is 2081983861. The reversal of 2081983855 is 5583891802.

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-2081983855 is a prime.

It is a super-3 number, since 3×20819838553 (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2081983799 and 2081983808.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 29742592 + ... + 29742661.

It is an arithmetic number, because the mean of its divisors is an integer number (356911524).

Almost surely, 22081983855 is an apocalyptic number.

2081983855 is a deficient number, since it is larger than the sum of its proper divisors (773308337).

2081983855 is an equidigital number, since it uses as much as digits as its factorization.

2081983855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59485265.

The product of its (nonzero) digits is 691200, while the sum is 49.

The square root of 2081983855 is about 45628.7612696203. The cubic root of 2081983855 is about 1276.9065629655.

The spelling of 2081983855 in words is "two billion, eighty-one million, nine hundred eighty-three thousand, eight hundred fifty-five".

Divisors: 1 5 7 35 59485253 297426265 416396771 2081983855