Search a number
226491 = 3174441
BaseRepresentation
bin110111010010111011
3102111200120
4313102323
524221431
64504323
71632216
oct672273
9374616
10226491
11145191
12ab0a3
137c125
145c77d
1547196
hex374bb

226491 has 8 divisors (see below), whose sum is σ = 319824. Its totient is φ = 142080.

The previous prime is 226487. The next prime is 226511. The reversal of 226491 is 194622.

226491 is nontrivially palindromic in base 2.

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

It is not a de Polignac number, because 226491 - 22 = 226487 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (226451) 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, 2170 + ... + 2271.

It is an arithmetic number, because the mean of its divisors is an integer number (39978).

2226491 is an apocalyptic number.

226491 is a deficient number, since it is larger than the sum of its proper divisors (93333).

226491 is a wasteful number, since it uses less digits than its factorization.

226491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4461.

The product of its digits is 864, while the sum is 24.

The square root of 226491 is about 475.9107059103. The cubic root of 226491 is about 60.9560733653.

It can be divided in two parts, 226 and 491, that added together give a palindrome (717).

The spelling of 226491 in words is "two hundred twenty-six thousand, four hundred ninety-one".

Divisors: 1 3 17 51 4441 13323 75497 226491