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2842002481 = 8929318289
BaseRepresentation
bin1010100101100101…
…1000010000110001
321100001201200111011
42221121120100301
521310023034411
61150001550521
7130266423343
oct25131302061
97301650434
102842002481
11122926658a
12673945441
13363a45396
141cd639293
15119784c21
hexa9658431

2842002481 has 4 divisors (see below), whose sum is σ = 2842329700. Its totient is φ = 2841675264.

The previous prime is 2842002473. The next prime is 2842002487. The reversal of 2842002481 is 1842002482.

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

It can be written as a sum of positive squares in 2 ways, for example, as 58384881 + 2783617600 = 7641^2 + 52760^2 .

It is a cyclic number.

It is not a de Polignac number, because 2842002481 - 23 = 2842002473 is a prime.

It is a super-2 number, since 2×28420024812 = 16153956204020310722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2842002487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150216 + ... + 168073.

It is an arithmetic number, because the mean of its divisors is an integer number (710582425).

Almost surely, 22842002481 is an apocalyptic number.

It is an amenable number.

2842002481 is a deficient number, since it is larger than the sum of its proper divisors (327219).

2842002481 is an equidigital number, since it uses as much as digits as its factorization.

2842002481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327218.

The product of its (nonzero) digits is 8192, while the sum is 31.

The square root of 2842002481 is about 53310.4350104180. The cubic root of 2842002481 is about 1416.4725115667.

Subtracting from 2842002481 its reverse (1842002482), we obtain a palindrome (999999999).

The spelling of 2842002481 in words is "two billion, eight hundred forty-two million, two thousand, four hundred eighty-one".

Divisors: 1 8929 318289 2842002481