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228183190 = 25154914731
BaseRepresentation
bin11011001100111…
…00110010010110
3120220100220111021
431212130302112
5431403330230
634350431354
75440345054
oct1546346226
9526326437
10228183190
11107892454
126450255a
1338374351
142243b1d4
1515074c7a
hexd99cc96

228183190 has 16 divisors (see below), whose sum is σ = 411022800. Its totient is φ = 91208160.

The previous prime is 228183187. The next prime is 228183199. The reversal of 228183190 is 91381822.

228183190 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2281831902 = 104135136397152200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228183199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8125 + ... + 22855.

It is an arithmetic number, because the mean of its divisors is an integer number (25688925).

Almost surely, 2228183190 is an apocalyptic number.

228183190 is a deficient number, since it is larger than the sum of its proper divisors (182839610).

228183190 is a wasteful number, since it uses less digits than its factorization.

228183190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16287.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 228183190 is about 15105.7336796330. The cubic root of 228183190 is about 611.0750459402.

The spelling of 228183190 in words is "two hundred twenty-eight million, one hundred eighty-three thousand, one hundred ninety".

Divisors: 1 2 5 10 1549 3098 7745 14731 15490 29462 73655 147310 22818319 45636638 114091595 228183190