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42812030 = 254281203
BaseRepresentation
bin1010001101010…
…0001001111110
32222120002001202
42203110021332
541424441110
64125335502
71026616262
oct243241176
988502052
1042812030
1122191348
1212407592
138b3c781
1459860a2
153b5a0a5
hex28d427e

42812030 has 8 divisors (see below), whose sum is σ = 77061672. Its totient is φ = 17124808.

The previous prime is 42812027. The next prime is 42812041. The reversal of 42812030 is 3021824.

42812030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42811993 and 42812011.

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 3 ways as a sum of consecutive naturals, for example, 2140592 + ... + 2140611.

It is an arithmetic number, because the mean of its divisors is an integer number (9632709).

Almost surely, 242812030 is an apocalyptic number.

42812030 is a deficient number, since it is larger than the sum of its proper divisors (34249642).

42812030 is a wasteful number, since it uses less digits than its factorization.

42812030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4281210.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 42812030 is about 6543.0902484988. The cubic root of 42812030 is about 349.8285691076.

Adding to 42812030 its reverse (3021824), we get a palindrome (45833854).

The spelling of 42812030 in words is "forty-two million, eight hundred twelve thousand, thirty".

Divisors: 1 2 5 10 4281203 8562406 21406015 42812030