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42657854 = 221328927
BaseRepresentation
bin1010001010111…
…0100000111110
32222021020120112
42202232200332
541410022404
64122150022
71025404631
oct242564076
988236515
1042657854
1122096528
1212352312
138ab7545
145945c18
153b2956e
hex28ae83e

42657854 has 4 divisors (see below), whose sum is σ = 63986784. Its totient is φ = 21328926.

The previous prime is 42657851. The next prime is 42657863. The reversal of 42657854 is 45875624.

42657854 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42657851) 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 as a sum of consecutive naturals, namely, 10664462 + ... + 10664465.

It is an arithmetic number, because the mean of its divisors is an integer number (15996696).

Almost surely, 242657854 is an apocalyptic number.

42657854 is a deficient number, since it is larger than the sum of its proper divisors (21328930).

42657854 is a wasteful number, since it uses less digits than its factorization.

42657854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21328929.

The product of its digits is 268800, while the sum is 41.

The square root of 42657854 is about 6531.2980333162. The cubic root of 42657854 is about 349.4081261960.

The spelling of 42657854 in words is "forty-two million, six hundred fifty-seven thousand, eight hundred fifty-four".

Divisors: 1 2 21328927 42657854