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2981441 = 10692789
BaseRepresentation
bin1011010111111001000001
312121110202202
423113321001
51230401231
6143522545
734225151
oct13277101
95543682
102981441
111757001
12bb9455
13805088
14578761
153dd5cb
hex2d7e41

2981441 has 4 divisors (see below), whose sum is σ = 2985300. Its totient is φ = 2977584.

The previous prime is 2981437. The next prime is 2981449. The reversal of 2981441 is 1441892.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1635841 + 1345600 = 1279^2 + 1160^2 .

It is a cyclic number.

It is not a de Polignac number, because 2981441 - 22 = 2981437 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2981449) 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, 326 + ... + 2463.

It is an arithmetic number, because the mean of its divisors is an integer number (746325).

22981441 is an apocalyptic number.

It is an amenable number.

2981441 is a deficient number, since it is larger than the sum of its proper divisors (3859).

2981441 is a wasteful number, since it uses less digits than its factorization.

2981441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3858.

The product of its digits is 2304, while the sum is 29.

The square root of 2981441 is about 1726.6849741629. The cubic root of 2981441 is about 143.9269337397.

The spelling of 2981441 in words is "two million, nine hundred eighty-one thousand, four hundred forty-one".

Divisors: 1 1069 2789 2981441