Search a number
-
+
23542057 = 711305741
BaseRepresentation
bin101100111001…
…1100100101001
31122022001122001
41121303210221
522011321212
62200331001
7404050510
oct131634451
948261561
1023542057
111231a550
127a73a61
134b53716
1431ab677
152100657
hex1673929

23542057 has 8 divisors (see below), whose sum is σ = 29351232. Its totient is φ = 18344400.

The previous prime is 23542039. The next prime is 23542063. The reversal of 23542057 is 75024532.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23542057 - 211 = 23540009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23542097) 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 7 ways as a sum of consecutive naturals, for example, 152794 + ... + 152947.

It is an arithmetic number, because the mean of its divisors is an integer number (3668904).

Almost surely, 223542057 is an apocalyptic number.

It is an amenable number.

23542057 is a deficient number, since it is larger than the sum of its proper divisors (5809175).

23542057 is a wasteful number, since it uses less digits than its factorization.

23542057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305759.

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 23542057 is about 4852.0157666685. The cubic root of 23542057 is about 286.6034863167.

Adding to 23542057 its reverse (75024532), we get a palindrome (98566589).

The spelling of 23542057 in words is "twenty-three million, five hundred forty-two thousand, fifty-seven".

Divisors: 1 7 11 77 305741 2140187 3363151 23542057