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228422361 = 3233310469
BaseRepresentation
bin11011001110101…
…11001011011001
3120220211001120110
431213113023121
5431434003421
634355514533
75442362256
oct1547271331
9526731513
10228422361
11107a36112
12645b8a49
133842917b
14224a042d
15150c0a76
hexd9d72d9

228422361 has 8 divisors (see below), whose sum is σ = 317805120. Its totient is φ = 145660592.

The previous prime is 228422339. The next prime is 228422413. The reversal of 228422361 is 163224822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 228422361 - 26 = 228422297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (228422261) 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 in 7 ways as a sum of consecutive naturals, for example, 1655166 + ... + 1655303.

It is an arithmetic number, because the mean of its divisors is an integer number (39725640).

Almost surely, 2228422361 is an apocalyptic number.

It is an amenable number.

228422361 is a deficient number, since it is larger than the sum of its proper divisors (89382759).

228422361 is a wasteful number, since it uses less digits than its factorization.

228422361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3310495.

The product of its digits is 9216, while the sum is 30.

The square root of 228422361 is about 15113.6481697835. The cubic root of 228422361 is about 611.2884715311.

The spelling of 228422361 in words is "two hundred twenty-eight million, four hundred twenty-two thousand, three hundred sixty-one".

Divisors: 1 3 23 69 3310469 9931407 76140787 228422361