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42877869 = 315499227
BaseRepresentation
bin1010001110010…
…0001110101101
32222200102101020
42203210032231
541434042434
64131004353
71030312236
oct243441655
988612336
1042877869
1122226861
12124396b9
138b63728
1459a208d
153b6e849
hex28e43ad

42877869 has 8 divisors (see below), whose sum is σ = 57213600. Its totient is φ = 28563696.

The previous prime is 42877847. The next prime is 42877871. The reversal of 42877869 is 96877824.

42877869 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 not a de Polignac number, because 42877869 - 212 = 42873773 is a prime.

It is a super-2 number, since 2×428778692 = 3677023299962322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42877369) 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 7 ways as a sum of consecutive naturals, for example, 34 + ... + 9260.

It is an arithmetic number, because the mean of its divisors is an integer number (7151700).

Almost surely, 242877869 is an apocalyptic number.

It is an amenable number.

42877869 is a deficient number, since it is larger than the sum of its proper divisors (14335731).

42877869 is a wasteful number, since it uses less digits than its factorization.

42877869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10779.

The product of its digits is 1354752, while the sum is 51.

The square root of 42877869 is about 6548.1195010476. The cubic root of 42877869 is about 350.0078066286.

The spelling of 42877869 in words is "forty-two million, eight hundred seventy-seven thousand, eight hundred sixty-nine".

Divisors: 1 3 1549 4647 9227 27681 14292623 42877869