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42642853 = 1115125673
BaseRepresentation
bin1010001010101…
…0110110100101
32222020110222221
42202222312211
541404032403
64121552341
71025313121
oct242526645
988213887
1042642853
1122086230
12123456b1
138ab0776
145940581
153b24dbd
hex28aada5

42642853 has 8 divisors (see below), whose sum is σ = 46829376. Its totient is φ = 38508000.

The previous prime is 42642839. The next prime is 42642869. The reversal of 42642853 is 35824624.

42642853 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 a de Polignac number, because none of the positive numbers 2k-42642853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42642823) 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, 11176 + ... + 14497.

It is an arithmetic number, because the mean of its divisors is an integer number (5853672).

Almost surely, 242642853 is an apocalyptic number.

It is an amenable number.

42642853 is a deficient number, since it is larger than the sum of its proper divisors (4186523).

42642853 is a wasteful number, since it uses less digits than its factorization.

42642853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25835.

The product of its digits is 46080, while the sum is 34.

The square root of 42642853 is about 6530.1495388697. The cubic root of 42642853 is about 349.3671639398.

It can be divided in two parts, 4264 and 2853, that added together give a palindrome (7117).

The spelling of 42642853 in words is "forty-two million, six hundred forty-two thousand, eight hundred fifty-three".

Divisors: 1 11 151 1661 25673 282403 3876623 42642853