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42443013 = 327675113
BaseRepresentation
bin1010000111101…
…0000100000101
32221212022212110
42201322010011
541331134023
64113411233
71023521364
oct241720405
987768773
1042443013
1121a5a078
1212269b19
138a40812
1458cb7db
153ad5a93
hex287a105

42443013 has 8 divisors (see below), whose sum is σ = 56622208. Its totient is φ = 28279584.

The previous prime is 42442997. The next prime is 42443039. The reversal of 42443013 is 31034424.

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

It is not a de Polignac number, because 42443013 - 24 = 42442997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42443413) 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, 5745 + ... + 10857.

It is an arithmetic number, because the mean of its divisors is an integer number (7077776).

Almost surely, 242443013 is an apocalyptic number.

It is an amenable number.

42443013 is a deficient number, since it is larger than the sum of its proper divisors (14179195).

42443013 is a wasteful number, since it uses less digits than its factorization.

42443013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7883.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 42443013 is about 6514.8302357007. The cubic root of 42443013 is about 348.8205550909.

Adding to 42443013 its reverse (31034424), we get a palindrome (73477437).

The spelling of 42443013 in words is "forty-two million, four hundred forty-three thousand, thirteen".

Divisors: 1 3 2767 5113 8301 15339 14147671 42443013