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283997 = 7291399
BaseRepresentation
bin1000101010101011101
3112102120102
41011111131
533041442
610030445
72261660
oct1052535
9472512
10283997
1118440a
12118425
139c35c
14756d7
1559232
hex4555d

283997 has 8 divisors (see below), whose sum is σ = 336000. Its totient is φ = 234864.

The previous prime is 283979. The next prime is 284003. The reversal of 283997 is 799382.

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

It is not a de Polignac number, because 283997 - 28 = 283741 is a prime.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 283997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (283937) 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, 497 + ... + 902.

It is an arithmetic number, because the mean of its divisors is an integer number (42000).

2283997 is an apocalyptic number.

It is an amenable number.

283997 is a deficient number, since it is larger than the sum of its proper divisors (52003).

283997 is a wasteful number, since it uses less digits than its factorization.

283997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1435.

The product of its digits is 27216, while the sum is 38.

The square root of 283997 is about 532.9136890717. The cubic root of 283997 is about 65.7311530651.

The spelling of 283997 in words is "two hundred eighty-three thousand, nine hundred ninety-seven".

Divisors: 1 7 29 203 1399 9793 40571 283997