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228327750 = 232537219109
BaseRepresentation
bin11011001110000…
…00000101000110
3120220122020210100
431213000011012
5431422442000
634353504530
75441516400
oct1547000506
9526566710
10228327750
11107981022
1264572146
13383c50a1
1422477b70
15150a2a00
hexd9c0146

228327750 has 288 divisors, whose sum is σ = 762933600. Its totient is φ = 48988800.

The previous prime is 228327733. The next prime is 228327773. The reversal of 228327750 is 57723822.

It is a happy number.

It is a super-2 number, since 2×2283277502 = 104267122840125000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 2094696 + ... + 2094804.

It is an arithmetic number, because the mean of its divisors is an integer number (2649075).

Almost surely, 2228327750 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228327750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (381466800).

228327750 is an abundant number, since it is smaller than the sum of its proper divisors (534605850).

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

228327750 is a wasteful number, since it uses less digits than its factorization.

228327750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165 (or 145 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 228327750 is about 15110.5178600867. The cubic root of 228327750 is about 611.2040626900.

The spelling of 228327750 in words is "two hundred twenty-eight million, three hundred twenty-seven thousand, seven hundred fifty".