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44287 = 67661
BaseRepresentation
bin1010110011111111
32020202021
422303333
52404122
6541011
7243055
oct126377
966667
1044287
1130301
1221767
1317209
14121d5
15d1c7
hexacff

44287 has 4 divisors (see below), whose sum is σ = 45016. Its totient is φ = 43560.

The previous prime is 44281. The next prime is 44293. The reversal of 44287 is 78244.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (44281) and next prime (44293).

It is a cyclic number.

It is not a de Polignac number, because 44287 - 23 = 44279 is a prime.

It is a super-2 number, since 2×442872 = 3922676738, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 9 and base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44281) 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, 264 + ... + 397.

It is an arithmetic number, because the mean of its divisors is an integer number (11254).

244287 is an apocalyptic number.

44287 is the 122-nd hex number.

44287 is a deficient number, since it is larger than the sum of its proper divisors (729).

44287 is an equidigital number, since it uses as much as digits as its factorization.

44287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728.

The product of its digits is 1792, while the sum is 25.

The square root of 44287 is about 210.4447671005. Note that the first 3 decimals coincide. The cubic root of 44287 is about 35.3800753954.

It can be divided in two parts, 442 and 87, that added together give a square (529 = 232).

The spelling of 44287 in words is "forty-four thousand, two hundred eighty-seven".

Divisors: 1 67 661 44287