Search a number
-
+
51638041 = 713567451
BaseRepresentation
bin1100010011111…
…0111100011001
310121011111002001
43010332330121
5101204404131
65042441001
71164626140
oct304767431
9117144061
1051638041
112716a474
1215363161
13a90cb70
146c02757
154800261
hex313ef19

51638041 has 8 divisors (see below), whose sum is σ = 63554624. Its totient is φ = 40856400.

The previous prime is 51638023. The next prime is 51638077. The reversal of 51638041 is 14083615.

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

It is not a de Polignac number, because 51638041 - 211 = 51635993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51638011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 283635 + ... + 283816.

It is an arithmetic number, because the mean of its divisors is an integer number (7944328).

Almost surely, 251638041 is an apocalyptic number.

It is an amenable number.

51638041 is a deficient number, since it is larger than the sum of its proper divisors (11916583).

51638041 is a wasteful number, since it uses less digits than its factorization.

51638041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567471.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 51638041 is about 7185.9613831414. The cubic root of 51638041 is about 372.3830625539.

The spelling of 51638041 in words is "fifty-one million, six hundred thirty-eight thousand, forty-one".

Divisors: 1 7 13 91 567451 3972157 7376863 51638041