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227148147 = 3279319477
BaseRepresentation
bin11011000101000…
…00000101110011
3120211102022200100
431202200011303
5431122220042
634312323443
75425504332
oct1542400563
9524368610
10227148147
11107245846
12640a3583
13380a11b5
142224bd19
1514e1d24c
hexd8a0173

227148147 has 12 divisors (see below), whose sum is σ = 332257120. Its totient is φ = 149514768.

The previous prime is 227148139. The next prime is 227148149. The reversal of 227148147 is 741841722.

It is not a de Polignac number, because 227148147 - 23 = 227148139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (227148149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 159028 + ... + 160449.

Almost surely, 2227148147 is an apocalyptic number.

227148147 is a deficient number, since it is larger than the sum of its proper divisors (105108973).

227148147 is a wasteful number, since it uses less digits than its factorization.

227148147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319562 (or 319559 counting only the distinct ones).

The product of its digits is 25088, while the sum is 36.

The square root of 227148147 is about 15071.4348023007. The cubic root of 227148147 is about 610.1496963076.

Adding to 227148147 its reverse (741841722), we get a palindrome (968989869).

The spelling of 227148147 in words is "two hundred twenty-seven million, one hundred forty-eight thousand, one hundred forty-seven".

Divisors: 1 3 9 79 237 711 319477 958431 2875293 25238683 75716049 227148147