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2663331841 = 2991839029
BaseRepresentation
bin1001111010111111…
…0011100000000001
320212121112021110001
42132233303200001
520423303104331
61120140240001
7122666642602
oct23657634001
96777467401
102663331841
1111474216a5
12623b40001
13335a18601
141b3a09da9
15108c40561
hex9ebf3801

2663331841 has 4 divisors (see below), whose sum is σ = 2755170900. Its totient is φ = 2571492784.

The previous prime is 2663331793. The next prime is 2663331857. The reversal of 2663331841 is 1481333662.

2663331841 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1481333662 = 2740666831.

It can be written as a sum of positive squares in 2 ways, for example, as 2216432241 + 446899600 = 47079^2 + 21140^2 .

It is a cyclic number.

It is not a de Polignac number, because 2663331841 - 227 = 2529114113 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2663331841.

It is not an unprimeable number, because it can be changed into a prime (2663335841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45919486 + ... + 45919543.

It is an arithmetic number, because the mean of its divisors is an integer number (688792725).

Almost surely, 22663331841 is an apocalyptic number.

It is an amenable number.

2663331841 is a deficient number, since it is larger than the sum of its proper divisors (91839059).

2663331841 is an equidigital number, since it uses as much as digits as its factorization.

2663331841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91839058.

The product of its digits is 62208, while the sum is 37.

The square root of 2663331841 is about 51607.4785375143. The cubic root of 2663331841 is about 1386.1442478242.

The spelling of 2663331841 in words is "two billion, six hundred sixty-three million, three hundred thirty-one thousand, eight hundred forty-one".

Divisors: 1 29 91839029 2663331841