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4243281 = 37202061
BaseRepresentation
bin10000001011111101010001
321222120200120
4100023331101
52041241111
6230540453
751032040
oct20137521
97876616
104243281
112439049
121507729
13b57523
147c6557
1558c406
hex40bf51

4243281 has 8 divisors (see below), whose sum is σ = 6465984. Its totient is φ = 2424720.

The previous prime is 4243279. The next prime is 4243297. The reversal of 4243281 is 1823424.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4243281 - 21 = 4243279 is a prime.

It is a super-2 number, since 2×42432812 = 36010867289922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4243181) 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 7 ways as a sum of consecutive naturals, for example, 101010 + ... + 101051.

It is an arithmetic number, because the mean of its divisors is an integer number (808248).

Almost surely, 24243281 is an apocalyptic number.

It is an amenable number.

4243281 is a deficient number, since it is larger than the sum of its proper divisors (2222703).

4243281 is a wasteful number, since it uses less digits than its factorization.

4243281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202071.

The product of its digits is 1536, while the sum is 24.

The square root of 4243281 is about 2059.9225713604. The cubic root of 4243281 is about 161.8951844461.

The spelling of 4243281 in words is "four million, two hundred forty-three thousand, two hundred eighty-one".

Divisors: 1 3 7 21 202061 606183 1414427 4243281