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42525430 = 255972077
BaseRepresentation
bin1010001000111…
…0001011110110
32222000111220221
42202032023312
541341303210
64115244554
71024313563
oct242161366
988014827
1042525430
1122005a92
12122a975a
138a6c19c
14590d86a
153b001da
hex288e2f6

42525430 has 16 divisors (see below), whose sum is σ = 77844240. Its totient is φ = 16721632.

The previous prime is 42525419. The next prime is 42525433. The reversal of 42525430 is 3452524.

42525430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 42525395 and 42525404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42525433) 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 7 ways as a sum of consecutive naturals, for example, 35449 + ... + 36628.

It is an arithmetic number, because the mean of its divisors is an integer number (4865265).

Almost surely, 242525430 is an apocalyptic number.

42525430 is a deficient number, since it is larger than the sum of its proper divisors (35318810).

42525430 is a wasteful number, since it uses less digits than its factorization.

42525430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72143.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 42525430 is about 6521.1525055008. The cubic root of 42525430 is about 349.0461921930.

Adding to 42525430 its reverse (3452524), we get a palindrome (45977954).

The spelling of 42525430 in words is "forty-two million, five hundred twenty-five thousand, four hundred thirty".

Divisors: 1 2 5 10 59 118 295 590 72077 144154 360385 720770 4252543 8505086 21262715 42525430