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227136227 = 2161105107
BaseRepresentation
bin11011000100111…
…01001011100011
3120211101201022212
431202131023203
5431121324402
634312152335
75425424513
oct1542351343
9524351285
10227136227
1110723789a
12640986ab
1338098946
1422247843
1514e19952
hexd89d2e3

227136227 has 4 divisors (see below), whose sum is σ = 227243496. Its totient is φ = 227028960.

The previous prime is 227136181. The next prime is 227136251. The reversal of 227136227 is 722631722.

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 227136227 - 212 = 227132131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 227136193 and 227136202.

It is not an unprimeable number, because it can be changed into a prime (227136727) 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, 50393 + ... + 54714.

It is an arithmetic number, because the mean of its divisors is an integer number (56810874).

Almost surely, 2227136227 is an apocalyptic number.

227136227 is a deficient number, since it is larger than the sum of its proper divisors (107269).

227136227 is a wasteful number, since it uses less digits than its factorization.

227136227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107268.

The product of its digits is 14112, while the sum is 32.

The square root of 227136227 is about 15071.0393470391. The cubic root of 227136227 is about 610.1390232268.

Adding to 227136227 its reverse (722631722), we get a palindrome (949767949).

The spelling of 227136227 in words is "two hundred twenty-seven million, one hundred thirty-six thousand, two hundred twenty-seven".

Divisors: 1 2161 105107 227136227