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42024641 = 173421577
BaseRepresentation
bin1010000001001…
…1111011000001
32221002001222012
42200103323001
541224242031
64100422305
71020126551
oct240237301
987061865
1042024641
11217a380a
12120a7995
138925269
14581d161
153a51b2b
hex2813ec1

42024641 has 8 divisors (see below), whose sum is σ = 42441384. Its totient is φ = 41610240.

The previous prime is 42024617. The next prime is 42024667. The reversal of 42024641 is 14642024.

It can be written as a sum of positive squares in 4 ways, for example, as 14409616 + 27615025 = 3796^2 + 5255^2 .

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 42024641 - 210 = 42023617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42024041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72545 + ... + 73121.

It is an arithmetic number, because the mean of its divisors is an integer number (5305173).

Almost surely, 242024641 is an apocalyptic number.

It is an amenable number.

42024641 is a deficient number, since it is larger than the sum of its proper divisors (416743).

42024641 is a wasteful number, since it uses less digits than its factorization.

42024641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1171.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 42024641 is about 6482.6415140743. The cubic root of 42024641 is about 347.6706295898.

Adding to 42024641 its reverse (14642024), we get a palindrome (56666665).

The spelling of 42024641 in words is "forty-two million, twenty-four thousand, six hundred forty-one".

Divisors: 1 173 421 577 72833 99821 242917 42024641