Search a number
-
+
226201361 = 1571440773
BaseRepresentation
bin11010111101110…
…00111100010001
3120202122012221012
431132320330101
5430401420421
634240140305
75414452121
oct1536707421
9522565835
10226201361
11106759481
1263907695
1337b2c279
1422082c81
1514cd295b
hexd7b8f11

226201361 has 4 divisors (see below), whose sum is σ = 227642292. Its totient is φ = 224760432.

The previous prime is 226201331. The next prime is 226201379. The reversal of 226201361 is 163102622.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 163102622 = 281551311.

It can be written as a sum of positive squares in 2 ways, for example, as 73530625 + 152670736 = 8575^2 + 12356^2 .

It is a cyclic number.

It is not a de Polignac number, because 226201361 - 222 = 222007057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (226201301) 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, 720230 + ... + 720543.

It is an arithmetic number, because the mean of its divisors is an integer number (56910573).

Almost surely, 2226201361 is an apocalyptic number.

It is an amenable number.

226201361 is a deficient number, since it is larger than the sum of its proper divisors (1440931).

226201361 is a wasteful number, since it uses less digits than its factorization.

226201361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1440930.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 226201361 is about 15039.9920545192. The cubic root of 226201361 is about 609.3007853200.

Adding to 226201361 its reverse (163102622), we get a palindrome (389303983).

The spelling of 226201361 in words is "two hundred twenty-six million, two hundred one thousand, three hundred sixty-one".

Divisors: 1 157 1440773 226201361