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228754290 = 2357625143
BaseRepresentation
bin11011010001010…
…00001101110010
3120221102220220010
431220220031302
5432030114130
634410555350
75445244062
oct1550501562
9527386803
10228754290
11108142536
1264738b56
133851428b
14225493a2
15151390b0
hexda28372

228754290 has 16 divisors (see below), whose sum is σ = 549010368. Its totient is φ = 61001136.

The previous prime is 228754289. The next prime is 228754327. The reversal of 228754290 is 92457822.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3812542 + ... + 3812601.

It is an arithmetic number, because the mean of its divisors is an integer number (34313148).

Almost surely, 2228754290 is an apocalyptic number.

228754290 is an abundant number, since it is smaller than the sum of its proper divisors (320256078).

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

228754290 is a wasteful number, since it uses less digits than its factorization.

228754290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7625153.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 228754290 is about 15124.6252846145. The cubic root of 228754290 is about 611.5844235369.

The spelling of 228754290 in words is "two hundred twenty-eight million, seven hundred fifty-four thousand, two hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 7625143 15250286 22875429 38125715 45750858 76251430 114377145 228754290