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37287 = 331381
BaseRepresentation
bin1001000110100111
31220011000
421012213
52143122
6444343
7213465
oct110647
956130
1037287
1126018
12196b3
1313c83
14d835
15b0ac
hex91a7

37287 has 8 divisors (see below), whose sum is σ = 55280. Its totient is φ = 24840.

The previous prime is 37277. The next prime is 37307. The reversal of 37287 is 78273.

37287 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 37287 - 26 = 37223 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1381 = 37287 / (3 + 7 + 2 + 8 + 7).

It is a Duffinian number.

37287 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 37287.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 664 + ... + 717.

It is an arithmetic number, because the mean of its divisors is an integer number (6910).

237287 is an apocalyptic number.

37287 is a deficient number, since it is larger than the sum of its proper divisors (17993).

37287 is a wasteful number, since it uses less digits than its factorization.

37287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1390 (or 1384 counting only the distinct ones).

The product of its digits is 2352, while the sum is 27.

The square root of 37287 is about 193.0984205010. The cubic root of 37287 is about 33.4081541519.

It can be divided in two parts, 37 and 287, that added together give a square (324 = 182).

The spelling of 37287 in words is "thirty-seven thousand, two hundred eighty-seven".

Divisors: 1 3 9 27 1381 4143 12429 37287