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2988641 = 24112401
BaseRepresentation
bin1011011001101001100001
312121211122102
423121221201
51231114031
6144020145
734255145
oct13315141
95554572
102988641
111761457
121001655
13808436
1457b225
153e07cb
hex2d9a61

2988641 has 4 divisors (see below), whose sum is σ = 3001284. Its totient is φ = 2976000.

The previous prime is 2988637. The next prime is 2988647. The reversal of 2988641 is 1468892.

2988641 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.

It can be written as a sum of positive squares in 2 ways, for example, as 1700416 + 1288225 = 1304^2 + 1135^2 .

It is a cyclic number.

It is not a de Polignac number, because 2988641 - 22 = 2988637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2988595 and 2988604.

It is not an unprimeable number, because it can be changed into a prime (2988647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5960 + ... + 6441.

It is an arithmetic number, because the mean of its divisors is an integer number (750321).

22988641 is an apocalyptic number.

It is an amenable number.

2988641 is a deficient number, since it is larger than the sum of its proper divisors (12643).

2988641 is a wasteful number, since it uses less digits than its factorization.

2988641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12642.

The product of its digits is 27648, while the sum is 38.

The square root of 2988641 is about 1728.7686369205. The cubic root of 2988641 is about 144.0426988860.

The spelling of 2988641 in words is "two million, nine hundred eighty-eight thousand, six hundred forty-one".

Divisors: 1 241 12401 2988641