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227155968 = 213331379
BaseRepresentation
bin11011000101000…
…10000000000000
3120211102201102000
431202202000000
5431122442333
634312424000
75425536204
oct1542420000
9524381360
10227155968
11107250706
12640a8000
13380a4920
1422250b04
1514e20713
hexd8a2000

227155968 has 224 divisors, whose sum is σ = 733958400. Its totient is φ = 69009408.

The previous prime is 227155961. The next prime is 227155991. The reversal of 227155968 is 869551722.

227155968 is a `hidden beast` number, since 22 + 71 + 559 + 6 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (227155961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2875353 + ... + 2875431.

It is an arithmetic number, because the mean of its divisors is an integer number (3276600).

Almost surely, 2227155968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 227155968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (366979200).

227155968 is an abundant number, since it is smaller than the sum of its proper divisors (506802432).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

227155968 is an equidigital number, since it uses as much as digits as its factorization.

227155968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127 (or 97 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The square root of 227155968 is about 15071.6942644150. The cubic root of 227155968 is about 610.1566989710.

The spelling of 227155968 in words is "two hundred twenty-seven million, one hundred fifty-five thousand, nine hundred sixty-eight".