Search a number
-
+
228600000 = 263255127
BaseRepresentation
bin11011010000000…
…10100011000000
3120221011002020200
431220002203000
5432010200000
634403405200
75444032206
oct1550024300
9527132220
10228600000
11108047622
1264683800
133848bc95
1422509076
1515108500
hexda028c0

228600000 has 252 divisors, whose sum is σ = 825447168. Its totient is φ = 60480000.

The previous prime is 228599993. The next prime is 228600019. The reversal of 228600000 is 6822.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1799937 + ... + 1800063.

It is an arithmetic number, because the mean of its divisors is an integer number (3275584).

Almost surely, 2228600000 is an apocalyptic number.

228600000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228600000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (412723584).

228600000 is an abundant number, since it is smaller than the sum of its proper divisors (596847168).

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

228600000 is an equidigital number, since it uses as much as digits as its factorization.

228600000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170 (or 137 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 228600000 is about 15119.5238020250. The cubic root of 228600000 is about 611.4468922967.

Adding to 228600000 its reverse (6822), we get a palindrome (228606822).

The spelling of 228600000 in words is "two hundred twenty-eight million, six hundred thousand".