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226471489 = 392957641
BaseRepresentation
bin11010111111110…
…10111001000001
3120210010221110221
431133322321001
5430434041424
634250023041
75416655506
oct1537727101
9523127427
10226471489
11106923422
1263a17a81
1337bc51ca
14221134ad
1514d379e4
hexd7fae41

226471489 has 4 divisors (see below), whose sum is σ = 226533060. Its totient is φ = 226409920.

The previous prime is 226471481. The next prime is 226471493. The reversal of 226471489 is 984174622.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 984174622 = 2492087311.

It can be written as a sum of positive squares in 2 ways, for example, as 13749264 + 212722225 = 3708^2 + 14585^2 .

It is a cyclic number.

It is not a de Polignac number, because 226471489 - 23 = 226471481 is a prime.

It is a super-3 number, since 3×2264714893 (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (226471481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24892 + ... + 32749.

It is an arithmetic number, because the mean of its divisors is an integer number (56633265).

Almost surely, 2226471489 is an apocalyptic number.

It is an amenable number.

226471489 is a deficient number, since it is larger than the sum of its proper divisors (61571).

226471489 is an equidigital number, since it uses as much as digits as its factorization.

226471489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61570.

The product of its digits is 193536, while the sum is 43.

The square root of 226471489 is about 15048.9696989528. The cubic root of 226471489 is about 609.5432296745.

The spelling of 226471489 in words is "two hundred twenty-six million, four hundred seventy-one thousand, four hundred eighty-nine".

Divisors: 1 3929 57641 226471489