Search a number
-
+
228227371 = 728331337
BaseRepresentation
bin11011001101001…
…11100100101011
3120220110011002121
431212213210223
5431411233441
634351412111
75440620631
oct1546474453
9526404077
10228227371
11107912669
1264524037
133838b4a8
142244d351
1515082dd1
hexd9a792b

228227371 has 4 divisors (see below), whose sum is σ = 228265992. Its totient is φ = 228188752.

The previous prime is 228227339. The next prime is 228227387. The reversal of 228227371 is 173722822.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 228227371 - 25 = 228227339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228227471) 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, 8386 + ... + 22951.

It is an arithmetic number, because the mean of its divisors is an integer number (57066498).

Almost surely, 2228227371 is an apocalyptic number.

228227371 is a deficient number, since it is larger than the sum of its proper divisors (38621).

228227371 is an equidigital number, since it uses as much as digits as its factorization.

228227371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38620.

The product of its digits is 18816, while the sum is 34.

The square root of 228227371 is about 15107.1960005820. The cubic root of 228227371 is about 611.1144823310.

The spelling of 228227371 in words is "two hundred twenty-eight million, two hundred twenty-seven thousand, three hundred seventy-one".

Divisors: 1 7283 31337 228227371