Search a number
-
+
287027 = 1322079
BaseRepresentation
bin1000110000100110011
3112120201122
41012010303
533141102
610052455
72303546
oct1060463
9476648
10287027
11186714
1211a12b
13a0850
147685d
155a0a2
hex46133

287027 has 4 divisors (see below), whose sum is σ = 309120. Its totient is φ = 264936.

The previous prime is 287003. The next prime is 287047. The reversal of 287027 is 720782.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 720782 = 2360391.

It is a cyclic number.

It is not a de Polignac number, because 287027 - 28 = 286771 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 286987 and 287005.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 287027.

It is not an unprimeable number, because it can be changed into a prime (287047) 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, 11027 + ... + 11052.

It is an arithmetic number, because the mean of its divisors is an integer number (77280).

2287027 is an apocalyptic number.

287027 is a deficient number, since it is larger than the sum of its proper divisors (22093).

287027 is a wasteful number, since it uses less digits than its factorization.

287027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22092.

The product of its (nonzero) digits is 1568, while the sum is 26.

The square root of 287027 is about 535.7490083985. The cubic root of 287027 is about 65.9640912716.

The spelling of 287027 in words is "two hundred eighty-seven thousand, twenty-seven".

Divisors: 1 13 22079 287027