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287068 = 22431669
BaseRepresentation
bin1000110000101011100
3112120210011
41012011130
533141233
610053004
72303635
oct1060534
9476704
10287068
11186751
1211a164
13a0882
147688c
155a0cd
hex4615c

287068 has 12 divisors (see below), whose sum is σ = 514360. Its totient is φ = 140112.

The previous prime is 287059. The next prime is 287087. The reversal of 287068 is 860782.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

287068 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 663 + ... + 1006.

2287068 is an apocalyptic number.

It is an amenable number.

287068 is a deficient number, since it is larger than the sum of its proper divisors (227292).

287068 is a wasteful number, since it uses less digits than its factorization.

287068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1716 (or 1714 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 287068 is about 535.7872712187. The cubic root of 287068 is about 65.9672319738.

The spelling of 287068 in words is "two hundred eighty-seven thousand, sixty-eight".

Divisors: 1 2 4 43 86 172 1669 3338 6676 71767 143534 287068