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286026 = 231319193
BaseRepresentation
bin1000101110101001010
3112112100120
41011311022
533123101
610044110
72300616
oct1056512
9475316
10286026
11185994
12119636
13a0260
1476346
1559b36
hex45d4a

286026 has 32 divisors (see below), whose sum is σ = 651840. Its totient is φ = 82944.

The previous prime is 286019. The next prime is 286043. The reversal of 286026 is 620682.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 285987 and 286005.

It is an unprimeable number.

286026 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 15 ways as a sum of consecutive naturals, for example, 1386 + ... + 1578.

It is an arithmetic number, because the mean of its divisors is an integer number (20370).

2286026 is an apocalyptic number.

286026 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 286026, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (325920).

286026 is an abundant number, since it is smaller than the sum of its proper divisors (365814).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

286026 is a wasteful number, since it uses less digits than its factorization.

286026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 286026 is about 534.8139863541. The cubic root of 286026 is about 65.8873192097.

The spelling of 286026 in words is "two hundred eighty-six thousand, twenty-six".