Search a number
-
+
227538801 = 347257329
BaseRepresentation
bin11011000111111…
…11011101110001
3120212011011120000
431203333131301
5431222220201
634324540213
75432022300
oct1543773561
9525134500
10227538801
111074922a6
1264251669
13381a9c59
1422310437
1514e98d86
hexd8ff771

227538801 has 30 divisors (see below), whose sum is σ = 395405010. Its totient is φ = 130019904.

The previous prime is 227538799. The next prime is 227538803. The reversal of 227538801 is 108835722.

227538801 is a `hidden beast` number, since 2 + 275 + 388 + 0 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (227538799) and next prime (227538803).

It can be written as a sum of positive squares in only one way, i.e., 135839025 + 91699776 = 11655^2 + 9576^2 .

It is not a de Polignac number, because 227538801 - 21 = 227538799 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (227538803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 24696 + ... + 32633.

It is an arithmetic number, because the mean of its divisors is an integer number (13180167).

Almost surely, 2227538801 is an apocalyptic number.

227538801 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

227538801 is a deficient number, since it is larger than the sum of its proper divisors (167866209).

227538801 is an equidigital number, since it uses as much as digits as its factorization.

227538801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57355 (or 57339 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 227538801 is about 15084.3893147850. The cubic root of 227538801 is about 610.4992785942.

The spelling of 227538801 in words is "two hundred twenty-seven million, five hundred thirty-eight thousand, eight hundred one".

Divisors: 1 3 7 9 21 27 49 63 81 147 189 441 567 1323 3969 57329 171987 401303 515961 1203909 1547883 2809121 3611727 4643649 8427363 10835181 25282089 32505543 75846267 227538801