Search a number
-
+
42932569 is a prime number
BaseRepresentation
bin1010001111000…
…1100101011001
32222210012102011
42203301211121
541442320234
64132105521
71030630561
oct243614531
988705364
1042932569
1122263969
12124652a1
138b825b4
1459b7da1
153b80b64
hex28f1959

42932569 has 2 divisors, whose sum is σ = 42932570. Its totient is φ = 42932568.

The previous prime is 42932567. The next prime is 42932579. The reversal of 42932569 is 96523924.

42932569 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25401600 + 17530969 = 5040^2 + 4187^2 .

It is a cyclic number.

It is not a de Polignac number, because 42932569 - 21 = 42932567 is a prime.

It is a super-2 number, since 2×429325692 = 3686410961879522, which contains 22 as substring.

Together with 42932567, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (42932567) 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 as a sum of consecutive naturals, namely, 21466284 + 21466285.

It is an arithmetic number, because the mean of its divisors is an integer number (21466285).

Almost surely, 242932569 is an apocalyptic number.

It is an amenable number.

42932569 is a deficient number, since it is larger than the sum of its proper divisors (1).

42932569 is an equidigital number, since it uses as much as digits as its factorization.

42932569 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 116640, while the sum is 40.

The square root of 42932569 is about 6552.2949414690. The cubic root of 42932569 is about 350.1565802800.

The spelling of 42932569 in words is "forty-two million, nine hundred thirty-two thousand, five hundred sixty-nine".