Search a number
-
+
42425953 = 157270229
BaseRepresentation
bin1010000111010…
…1111001100001
32221211110110121
42201311321201
541330112303
64113200241
71023420553
oct241657141
987743417
1042425953
1121a48279
1212260081
138a35b1b
1458c54d3
153ad09bd
hex2875e61

42425953 has 4 divisors (see below), whose sum is σ = 42696340. Its totient is φ = 42155568.

The previous prime is 42425951. The next prime is 42425969. The reversal of 42425953 is 35952424.

42425953 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 22202944 + 20223009 = 4712^2 + 4497^2 .

It is a cyclic number.

It is not a de Polignac number, because 42425953 - 21 = 42425951 is a prime.

It is a super-2 number, since 2×424259532 = 3599922975916418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42425951) 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, 134958 + ... + 135271.

It is an arithmetic number, because the mean of its divisors is an integer number (10674085).

Almost surely, 242425953 is an apocalyptic number.

It is an amenable number.

42425953 is a deficient number, since it is larger than the sum of its proper divisors (270387).

42425953 is a wasteful number, since it uses less digits than its factorization.

42425953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270386.

The product of its digits is 43200, while the sum is 34.

The square root of 42425953 is about 6513.5207837237. The cubic root of 42425953 is about 348.7738126022.

The spelling of 42425953 in words is "forty-two million, four hundred twenty-five thousand, nine hundred fifty-three".

Divisors: 1 157 270229 42425953