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42055005 = 352803667
BaseRepresentation
bin1010000001101…
…1010101011101
32221010121121210
42200123111131
541231230010
64101215033
71020314226
oct240332535
987117553
1042055005
1121814603
1212101479
138936025
14582a24d
153a5ab20
hex281b55d

42055005 has 8 divisors (see below), whose sum is σ = 67288032. Its totient is φ = 22429328.

The previous prime is 42054973. The next prime is 42055019. The reversal of 42055005 is 50055024.

42055005 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 42055005 - 25 = 42054973 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 1401819 + ... + 1401848.

It is an arithmetic number, because the mean of its divisors is an integer number (8411004).

Almost surely, 242055005 is an apocalyptic number.

It is an amenable number.

42055005 is a deficient number, since it is larger than the sum of its proper divisors (25233027).

42055005 is a wasteful number, since it uses less digits than its factorization.

42055005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2803675.

The product of its (nonzero) digits is 1000, while the sum is 21.

The square root of 42055005 is about 6484.9830377573. The cubic root of 42055005 is about 347.7543434084.

The spelling of 42055005 in words is "forty-two million, fifty-five thousand, five".

Divisors: 1 3 5 15 2803667 8411001 14018335 42055005