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BaseRepresentation
bin1010001000100…
…0111101011110
32221222102120100
42202020331132
541340112110
64115001530
71024164312
oct242107536
987872510
1042504030
1121aa09a8
12122992a6
138a6251a
145905b42
153ae8bc0
hex2888f5e

42504030 has 48 divisors (see below), whose sum is σ = 110910384. Its totient is φ = 11293440.

The previous prime is 42504019. The next prime is 42504037. The reversal of 42504030 is 3040524.

It is a happy number.

42504030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 42503994 and 42504012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42504037) 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 23 ways as a sum of consecutive naturals, for example, 30550 + ... + 31910.

It is an arithmetic number, because the mean of its divisors is an integer number (2310633).

Almost surely, 242504030 is an apocalyptic number.

42504030 is an abundant number, since it is smaller than the sum of its proper divisors (68406354).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42504030 is a wasteful number, since it uses less digits than its factorization.

42504030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1721 (or 1718 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 42504030 is about 6519.5114847663. The cubic root of 42504030 is about 348.9876323945.

Adding to 42504030 its reverse (3040524), we get a palindrome (45544554).

The spelling of 42504030 in words is "forty-two million, five hundred four thousand, thirty".