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228100398 = 2359963467
BaseRepresentation
bin11011001100010…
…00100100101110
3120220012200220220
431212020210232
5431343203043
634344552210
75436551511
oct1546104456
9526180826
10228100398
11107836229
1264482666
1338345766
1422418d78
151505a483
hexd98892e

228100398 has 16 divisors (see below), whose sum is σ = 456969600. Its totient is φ = 75905336.

The previous prime is 228100357. The next prime is 228100403. The reversal of 228100398 is 893001822.

It is a congruent number.

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, 28140 + ... + 35327.

It is an arithmetic number, because the mean of its divisors is an integer number (28560600).

Almost surely, 2228100398 is an apocalyptic number.

228100398 is an abundant number, since it is smaller than the sum of its proper divisors (228869202).

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

228100398 is a wasteful number, since it uses less digits than its factorization.

228100398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64071.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 228100398 is about 15102.9930146312. The cubic root of 228100398 is about 611.0011312853.

The spelling of 228100398 in words is "two hundred twenty-eight million, one hundred thousand, three hundred ninety-eight".

Divisors: 1 2 3 6 599 1198 1797 3594 63467 126934 190401 380802 38016733 76033466 114050199 228100398