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283249 = 1491901
BaseRepresentation
bin1000101001001110001
3112101112201
41011021301
533030444
610023201
72256541
oct1051161
9471481
10283249
1118389a
12117b01
139bc05
1475321
1558dd4
hex45271

283249 has 4 divisors (see below), whose sum is σ = 285300. Its totient is φ = 281200.

The previous prime is 283211. The next prime is 283267. The reversal of 283249 is 942382.

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

It can be written as a sum of positive squares in 2 ways, for example, as 28224 + 255025 = 168^2 + 505^2 .

It is a cyclic number.

It is not a de Polignac number, because 283249 - 27 = 283121 is a prime.

It is a Duffinian number.

283249 is a lucky number.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (283289) 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, 802 + ... + 1099.

It is an arithmetic number, because the mean of its divisors is an integer number (71325).

2283249 is an apocalyptic number.

It is an amenable number.

283249 is a deficient number, since it is larger than the sum of its proper divisors (2051).

283249 is a wasteful number, since it uses less digits than its factorization.

283249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2050.

The product of its digits is 3456, while the sum is 28.

The square root of 283249 is about 532.2114241540. The cubic root of 283249 is about 65.6733940846.

The spelling of 283249 in words is "two hundred eighty-three thousand, two hundred forty-nine".

Divisors: 1 149 1901 283249