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229668130 = 25174213209
BaseRepresentation
bin11011011000001…
…11010100100010
3121000011100110001
431230013110202
5432243340010
634442330214
75456101246
oct1554072442
9530140401
10229668130
1110870707a
1264ab996a
1338774203
1422706426
1515269c3a
hexdb07522

229668130 has 32 divisors (see below), whose sum is σ = 438896880. Its totient is φ = 86231040.

The previous prime is 229668121. The next prime is 229668137. The reversal of 229668130 is 31866922.

It can be written as a sum of positive squares in 8 ways, for example, as 59861169 + 169806961 = 7737^2 + 13031^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 229668130.

It is not an unprimeable number, because it can be changed into a prime (229668137) 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, 69966 + ... + 73174.

Almost surely, 2229668130 is an apocalyptic number.

229668130 is a deficient number, since it is larger than the sum of its proper divisors (209228750).

229668130 is a wasteful number, since it uses less digits than its factorization.

229668130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3654.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 229668130 is about 15154.8055084848. The cubic root of 229668130 is about 612.3977383073.

The spelling of 229668130 in words is "two hundred twenty-nine million, six hundred sixty-eight thousand, one hundred thirty".

Divisors: 1 2 5 10 17 34 85 170 421 842 2105 3209 4210 6418 7157 14314 16045 32090 35785 54553 71570 109106 272765 545530 1350989 2701978 6754945 13509890 22966813 45933626 114834065 229668130