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284013133 = 619374969
BaseRepresentation
bin10000111011011…
…011001001001101
3201210102100202221
4100323123021031
51040201410013
644103215341
710016033425
oct2073331115
9653370687
10284013133
111363552a8
127b147551
1346ac1211
1429a11485
1519e0208d
hex10edb24d

284013133 has 8 divisors (see below), whose sum is σ = 289035320. Its totient is φ = 279002880.

The previous prime is 284013113. The next prime is 284013139. The reversal of 284013133 is 331310482.

It can be written as a sum of positive squares in 4 ways, for example, as 32695524 + 251317609 = 5718^2 + 15853^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 284013133 - 217 = 283882061 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 284013098 and 284013107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (284013139) 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, 54673 + ... + 59641.

It is an arithmetic number, because the mean of its divisors is an integer number (36129415).

Almost surely, 2284013133 is an apocalyptic number.

It is an amenable number.

284013133 is a deficient number, since it is larger than the sum of its proper divisors (5022187).

284013133 is an equidigital number, since it uses as much as digits as its factorization.

284013133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5967.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 284013133 is about 16852.6891919361. The cubic root of 284013133 is about 657.3239770335.

The spelling of 284013133 in words is "two hundred eighty-four million, thirteen thousand, one hundred thirty-three".

Divisors: 1 61 937 4969 57157 303109 4655953 284013133