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42055023 = 353594483
BaseRepresentation
bin1010000001101…
…1010101101111
32221010121122110
42200123111233
541231230043
64101215103
71020314253
oct240332557
987117573
1042055023
112181461a
1212101493
13893603a
14582a263
153a5ab33
hex281b56f

42055023 has 16 divisors (see below), whose sum is σ = 58112640. Its totient is φ = 27035424.

The previous prime is 42055019. The next prime is 42055033. The reversal of 42055023 is 32055024.

It is not a de Polignac number, because 42055023 - 22 = 42055019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42055033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7140 + ... + 11622.

It is an arithmetic number, because the mean of its divisors is an integer number (3632040).

Almost surely, 242055023 is an apocalyptic number.

42055023 is a deficient number, since it is larger than the sum of its proper divisors (16057617).

42055023 is a wasteful number, since it uses less digits than its factorization.

42055023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4598.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 42055023 is about 6484.9844255788. The cubic root of 42055023 is about 347.7543930226.

Subtracting from 42055023 its reverse (32055024), we obtain a palindrome (9999999).

The spelling of 42055023 in words is "forty-two million, fifty-five thousand, twenty-three".

Divisors: 1 3 53 59 159 177 3127 4483 9381 13449 237599 264497 712797 793491 14018341 42055023