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42073508 = 2231733181
BaseRepresentation
bin1010000001111…
…1110110100100
32221011120000002
42200133312210
541232323013
64101440432
71020422201
oct240376644
987146002
1042073508
11218274a4
1212110118
138941589
145832ca8
153a61358
hex281fda4

42073508 has 12 divisors (see below), whose sum is σ = 73863132. Its totient is φ = 20969760.

The previous prime is 42073501. The next prime is 42073511. The reversal of 42073508 is 80537024.

It is a happy number.

42073508 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 8988004 + 33085504 = 2998^2 + 5752^2 .

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (42073501) 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 3 ways as a sum of consecutive naturals, for example, 15323 + ... + 17858.

It is an arithmetic number, because the mean of its divisors is an integer number (6155261).

Almost surely, 242073508 is an apocalyptic number.

It is an amenable number.

42073508 is a deficient number, since it is larger than the sum of its proper divisors (31789624).

42073508 is a wasteful number, since it uses less digits than its factorization.

42073508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33502 (or 33500 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 42073508 is about 6486.4094844529. The cubic root of 42073508 is about 347.8053365873.

The spelling of 42073508 in words is "forty-two million, seventy-three thousand, five hundred eight".

Divisors: 1 2 4 317 634 1268 33181 66362 132724 10518377 21036754 42073508