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4281281 = 10933917
BaseRepresentation
bin10000010101001111000001
322001111210222
4100111033001
52044000111
6231432425
751250604
oct20251701
98044728
104281281
112464654
121525715
13b6b904
147d633b
155987db
hex4153c1

4281281 has 4 divisors (see below), whose sum is σ = 4286292. Its totient is φ = 4276272.

The previous prime is 4281271. The next prime is 4281283. The reversal of 4281281 is 1821824.

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 3940225 + 341056 = 1985^2 + 584^2 .

It is a cyclic number.

It is not a de Polignac number, because 4281281 - 210 = 4280257 is a prime.

It is a super-2 number, since 2×42812812 = 36658734001922, which contains 22 as substring.

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 4281281.

It is not an unprimeable number, because it can be changed into a prime (4281283) 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, 866 + ... + 3051.

It is an arithmetic number, because the mean of its divisors is an integer number (1071573).

Almost surely, 24281281 is an apocalyptic number.

It is an amenable number.

4281281 is a deficient number, since it is larger than the sum of its proper divisors (5011).

4281281 is a wasteful number, since it uses less digits than its factorization.

4281281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5010.

The product of its digits is 1024, while the sum is 26.

The square root of 4281281 is about 2069.1256607563. The cubic root of 4281281 is about 162.3770241182.

The spelling of 4281281 in words is "four million, two hundred eighty-one thousand, two hundred eighty-one".

Divisors: 1 1093 3917 4281281