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228482185 = 561973823
BaseRepresentation
bin11011001111001…
…01110010001001
3120220221002122011
431213211302021
5431442412220
634401055521
75443031551
oct1547456211
9526832564
10228482185
11107a77058
12646275a1
133844a479
14224b8161
15150d365a
hexd9e5c89

228482185 has 8 divisors (see below), whose sum is σ = 274625280. Its totient is φ = 182487984.

The previous prime is 228482171. The next prime is 228482249. The reversal of 228482185 is 581284822.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-228482185 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33817 + ... + 40006.

It is an arithmetic number, because the mean of its divisors is an integer number (34328160).

Almost surely, 2228482185 is an apocalyptic number.

It is an amenable number.

228482185 is a deficient number, since it is larger than the sum of its proper divisors (46143095).

228482185 is an equidigital number, since it uses as much as digits as its factorization.

228482185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74447.

The product of its digits is 81920, while the sum is 40.

The square root of 228482185 is about 15115.6271785196. The cubic root of 228482185 is about 611.3418325203.

The spelling of 228482185 in words is "two hundred twenty-eight million, four hundred eighty-two thousand, one hundred eighty-five".

Divisors: 1 5 619 3095 73823 369115 45696437 228482185