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268443 = 3274261
BaseRepresentation
bin1000001100010011011
3111122020100
41001202123
532042233
65430443
72165430
oct1014233
9448210
10268443
1117375a
1210b423
1395256
146db87
1554813
hex4189b

268443 has 12 divisors (see below), whose sum is σ = 443248. Its totient is φ = 153360.

The previous prime is 268439. The next prime is 268459. The reversal of 268443 is 344862.

268443 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 268443 - 22 = 268439 is a prime.

It is a super-3 number, since 3×2684433 = 58033331901402921, which contains 333 as substring.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2 + 6 + 46 + 8 + 49 + 37 .

It is a Duffinian number.

268443 is strictly pandigital in base 7.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 268443.

It is not an unprimeable number, because it can be changed into a prime (268403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2068 + ... + 2193.

2268443 is an apocalyptic number.

268443 is a deficient number, since it is larger than the sum of its proper divisors (174805).

268443 is a wasteful number, since it uses less digits than its factorization.

268443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4274 (or 4271 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 268443 is about 518.1148521322. The cubic root of 268443 is about 64.5085620507.

The spelling of 268443 in words is "two hundred sixty-eight thousand, four hundred forty-three".

Divisors: 1 3 7 9 21 63 4261 12783 29827 38349 89481 268443