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228983530 = 25472112309
BaseRepresentation
bin11011010011000…
…00001011101010
3120221212120100111
431221200023222
5432104433110
634415524534
75450220316
oct1551401352
9527776314
10228983530
11108289796
126482974a
1338594719
14225a8b46
1515181e8a
hexda602ea

228983530 has 32 divisors (see below), whose sum is σ = 423118080. Its totient is φ = 89181120.

The previous prime is 228983519. The next prime is 228983533. The reversal of 228983530 is 35389822.

It is a super-2 number, since 2×2289835302 = 104866914022521800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (228983533) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 98016 + ... + 100324.

It is an arithmetic number, because the mean of its divisors is an integer number (13222440).

Almost surely, 2228983530 is an apocalyptic number.

228983530 is a deficient number, since it is larger than the sum of its proper divisors (194134550).

228983530 is a wasteful number, since it uses less digits than its factorization.

228983530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2574.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 228983530 is about 15132.2017565191. The cubic root of 228983530 is about 611.7886496622.

The spelling of 228983530 in words is "two hundred twenty-eight million, nine hundred eighty-three thousand, five hundred thirty".

Divisors: 1 2 5 10 47 94 211 235 422 470 1055 2110 2309 4618 9917 11545 19834 23090 49585 99170 108523 217046 487199 542615 974398 1085230 2435995 4871990 22898353 45796706 114491765 228983530