Search a number
-
+
227858231 is a prime number
BaseRepresentation
bin11011001010011…
…01011100110111
3120212202101201202
431211031130313
5431312430411
634335443115
75434522466
oct1545153467
9525671652
10227858231
11107690297
126438649b
133828c473
14223949dd
151500d83b
hexd94d737

227858231 has 2 divisors, whose sum is σ = 227858232. Its totient is φ = 227858230.

The previous prime is 227858227. The next prime is 227858237. The reversal of 227858231 is 132858722.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 227858231 - 22 = 227858227 is a prime.

It is a super-2 number, since 2×2278582312 = 103838746868898722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (227858237) 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 as a sum of consecutive naturals, namely, 113929115 + 113929116.

It is an arithmetic number, because the mean of its divisors is an integer number (113929116).

Almost surely, 2227858231 is an apocalyptic number.

227858231 is a deficient number, since it is larger than the sum of its proper divisors (1).

227858231 is an equidigital number, since it uses as much as digits as its factorization.

227858231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 53760, while the sum is 38.

The square root of 227858231 is about 15094.9736998777. The cubic root of 227858231 is about 610.7848278414.

The spelling of 227858231 in words is "two hundred twenty-seven million, eight hundred fifty-eight thousand, two hundred thirty-one".