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42630353 = 367116159
BaseRepresentation
bin1010001010011…
…1110011010001
32222012211211222
42202213303101
541403132403
64121414425
71025231513
oct242476321
988184758
1042630353
11220778a7
121233a415
138aa7b7c
145939bb3
153b21338
hex28a7cd1

42630353 has 4 divisors (see below), whose sum is σ = 42746880. Its totient is φ = 42513828.

The previous prime is 42630347. The next prime is 42630359. The reversal of 42630353 is 35303624.

42630353 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (42630347) and next prime (42630359).

It is a cyclic number.

It is not a de Polignac number, because 42630353 - 28 = 42630097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42630359) 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 3 ways as a sum of consecutive naturals, for example, 57713 + ... + 58446.

It is an arithmetic number, because the mean of its divisors is an integer number (10686720).

Almost surely, 242630353 is an apocalyptic number.

It is an amenable number.

42630353 is a deficient number, since it is larger than the sum of its proper divisors (116527).

42630353 is a wasteful number, since it uses less digits than its factorization.

42630353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116526.

The product of its (nonzero) digits is 6480, while the sum is 26.

The square root of 42630353 is about 6529.1923696580. The cubic root of 42630353 is about 349.3330236637. Note that the first 3 decimals are identical.

Adding to 42630353 its reverse (35303624), we get a palindrome (77933977).

The spelling of 42630353 in words is "forty-two million, six hundred thirty thousand, three hundred fifty-three".

Divisors: 1 367 116159 42630353