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42267829 = 317133337
BaseRepresentation
bin1010000100111…
…1010010110101
32221112102120011
42201033102311
541310032304
64105540221
71022161552
oct241172265
987472504
1042267829
112194a49a
12121a4671
1389abb66
145883a29
153a9dc04
hex284f4b5

42267829 has 4 divisors (see below), whose sum is σ = 42401484. Its totient is φ = 42134176.

The previous prime is 42267811. The next prime is 42267857. The reversal of 42267829 is 92876224.

42267829 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22819729 + 19448100 = 4777^2 + 4410^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-42267829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42267791 and 42267800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42267809) 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, 66352 + ... + 66985.

It is an arithmetic number, because the mean of its divisors is an integer number (10600371).

Almost surely, 242267829 is an apocalyptic number.

It is an amenable number.

42267829 is a deficient number, since it is larger than the sum of its proper divisors (133655).

42267829 is a wasteful number, since it uses less digits than its factorization.

42267829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133654.

The product of its digits is 96768, while the sum is 40.

The square root of 42267829 is about 6501.3713168838. The cubic root of 42267829 is about 348.3399730629.

The spelling of 42267829 in words is "forty-two million, two hundred sixty-seven thousand, eight hundred twenty-nine".

Divisors: 1 317 133337 42267829