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42124253 = 1131632287
BaseRepresentation
bin1010000010110…
…0001111011101
32221021010121112
42200230033131
541240434003
64102511405
71021023143
oct240541735
987233545
1042124253
1121861636
1212135565
13895b6c2
145847593
153a713d8
hex282c3dd

42124253 has 8 divisors (see below), whose sum is σ = 42776448. Its totient is φ = 41477184.

The previous prime is 42124231. The next prime is 42124279. The reversal of 42124253 is 35242124.

It is a happy number.

42124253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 42124253 - 26 = 42124189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42124213) 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, 17276 + ... + 19562.

It is an arithmetic number, because the mean of its divisors is an integer number (5347056).

Almost surely, 242124253 is an apocalyptic number.

It is an amenable number.

42124253 is a deficient number, since it is larger than the sum of its proper divisors (652195).

42124253 is a wasteful number, since it uses less digits than its factorization.

42124253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2563.

The product of its digits is 1920, while the sum is 23.

The square root of 42124253 is about 6490.3199458886. The cubic root of 42124253 is about 347.9451101387.

Adding to 42124253 its reverse (35242124), we get a palindrome (77366377).

The spelling of 42124253 in words is "forty-two million, one hundred twenty-four thousand, two hundred fifty-three".

Divisors: 1 113 163 2287 18419 258431 372781 42124253