Search a number
-
+
42284871 = 3229162011
BaseRepresentation
bin1010000101001…
…1011101000111
32221120021221100
42201103131013
541311103441
64110151143
71022262336
oct241233507
987507840
1042284871
1121961282
12121b24b3
1389b6845
145889d1d
153aa3cb6
hex2853747

42284871 has 12 divisors (see below), whose sum is σ = 63184680. Its totient is φ = 27217680.

The previous prime is 42284863. The next prime is 42284897. The reversal of 42284871 is 17848224.

42284871 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42284871 - 23 = 42284863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42284171) 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 11 ways as a sum of consecutive naturals, for example, 80745 + ... + 81266.

It is an arithmetic number, because the mean of its divisors is an integer number (5265390).

Almost surely, 242284871 is an apocalyptic number.

42284871 is a deficient number, since it is larger than the sum of its proper divisors (20899809).

42284871 is a wasteful number, since it uses less digits than its factorization.

42284871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162046 (or 162043 counting only the distinct ones).

The product of its digits is 28672, while the sum is 36.

The square root of 42284871 is about 6502.6818313677. The cubic root of 42284871 is about 348.3867825971.

The spelling of 42284871 in words is "forty-two million, two hundred eighty-four thousand, eight hundred seventy-one".

Divisors: 1 3 9 29 87 261 162011 486033 1458099 4698319 14094957 42284871