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42054854 = 245234649
BaseRepresentation
bin1010000001101…
…1010011000110
32221010121102012
42200123103012
541231223404
64101214222
71020313622
oct240332306
987117365
1042054854
1121814486
1212101372
138935c3a
14582a182
153a5aa6e
hex281b4c6

42054854 has 8 divisors (see below), whose sum is σ = 63109800. Its totient is φ = 21018256.

The previous prime is 42054851. The next prime is 42054863. The reversal of 42054854 is 45845024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×420548542 = 3537221489922632, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42054854.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42054851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6722 + ... + 11370.

It is an arithmetic number, because the mean of its divisors is an integer number (7888725).

Almost surely, 242054854 is an apocalyptic number.

42054854 is a deficient number, since it is larger than the sum of its proper divisors (21054946).

42054854 is a wasteful number, since it uses less digits than its factorization.

42054854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9174.

The product of its (nonzero) digits is 25600, while the sum is 32.

The square root of 42054854 is about 6484.9713954651. The cubic root of 42054854 is about 347.7539271998.

Adding to 42054854 its reverse (45845024), we get a palindrome (87899878).

The spelling of 42054854 in words is "forty-two million, fifty-four thousand, eight hundred fifty-four".

Divisors: 1 2 4523 4649 9046 9298 21027427 42054854