Search a number
-
+
42130141 is a prime number
BaseRepresentation
bin1010000010110…
…1101011011101
32221021102200121
42200231223131
541241131031
64102554541
71021046254
oct240555335
987242617
1042130141
1121865aa9
1212138a51
1389612a1
14584979b
153a73011
hex282dadd

42130141 has 2 divisors, whose sum is σ = 42130142. Its totient is φ = 42130140.

The previous prime is 42130139. The next prime is 42130169. The reversal of 42130141 is 14103124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21427641 + 20702500 = 4629^2 + 4550^2 .

It is a cyclic number.

It is not a de Polignac number, because 42130141 - 21 = 42130139 is a prime.

Together with 42130139, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42130111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21065070 + 21065071.

It is an arithmetic number, because the mean of its divisors is an integer number (21065071).

Almost surely, 242130141 is an apocalyptic number.

It is an amenable number.

42130141 is a deficient number, since it is larger than the sum of its proper divisors (1).

42130141 is an equidigital number, since it uses as much as digits as its factorization.

42130141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 42130141 is about 6490.7735286328. The cubic root of 42130141 is about 347.9613209532.

Adding to 42130141 its reverse (14103124), we get a palindrome (56233265).

The spelling of 42130141 in words is "forty-two million, one hundred thirty thousand, one hundred forty-one".