Search a number
-
+
42072119 = 83506893
BaseRepresentation
bin1010000001111…
…1100000110111
32221011111002122
42200133200313
541232301434
64101430155
71020415145
oct240374067
987144078
1042072119
1121826451
121210b35b
138940a5b
145832595
153a60c2e
hex281f837

42072119 has 4 divisors (see below), whose sum is σ = 42579096. Its totient is φ = 41565144.

The previous prime is 42072077. The next prime is 42072157. The reversal of 42072119 is 91127024.

42072119 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 is a cyclic number.

It is not a de Polignac number, because 42072119 - 224 = 25294903 is a prime.

It is a super-2 number, since 2×420721192 = 3540126394300322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42002119) 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, 253364 + ... + 253529.

It is an arithmetic number, because the mean of its divisors is an integer number (10644774).

Almost surely, 242072119 is an apocalyptic number.

42072119 is a deficient number, since it is larger than the sum of its proper divisors (506977).

42072119 is an equidigital number, since it uses as much as digits as its factorization.

42072119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506976.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 42072119 is about 6486.3024135481. The cubic root of 42072119 is about 347.8015091041.

The spelling of 42072119 in words is "forty-two million, seventy-two thousand, one hundred nineteen".

Divisors: 1 83 506893 42072119