Search a number
-
+
227808238 = 27234316453
BaseRepresentation
bin11011001010000…
…01001111101110
3120212122212011011
431211001033232
5431304330423
634334415434
75434223650
oct1545011756
9525585134
10227808238
11107656779
126436157a
1338272798
14223806d0
1514eedb0d
hexd9413ee

227808238 has 32 divisors (see below), whose sum is σ = 417010176. Its totient is φ = 91209888.

The previous prime is 227808209. The next prime is 227808247. The reversal of 227808238 is 832808722.

It is a happy number.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 227808238.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5620 + ... + 22072.

It is an arithmetic number, because the mean of its divisors is an integer number (13031568).

Almost surely, 2227808238 is an apocalyptic number.

227808238 is a deficient number, since it is larger than the sum of its proper divisors (189201938).

227808238 is a wasteful number, since it uses less digits than its factorization.

227808238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16528.

The product of its (nonzero) digits is 86016, while the sum is 40.

The square root of 227808238 is about 15093.3176604748. The cubic root of 227808238 is about 610.7401550359.

The spelling of 227808238 in words is "two hundred twenty-seven million, eight hundred eight thousand, two hundred thirty-eight".

Divisors: 1 2 7 14 23 43 46 86 161 301 322 602 989 1978 6923 13846 16453 32906 115171 230342 378419 707479 756838 1414958 2648933 4952353 5297866 9904706 16272017 32544034 113904119 227808238