Search a number
-
+
51140255011 = 193318131699
BaseRepresentation
bin101111101000001100…
…100101110100100011
311220000001102010102221
4233220030211310203
51314213401130021
635254333051511
73460205665246
oct575014456443
9156001363387
1051140255011
111a76338256a
129ab2926b97
134a90076331
142691d4b25d
1514e4a2d241
hexbe8325d23

51140255011 has 8 divisors (see below), whose sum is σ = 53994488000. Its totient is φ = 48302286120.

The previous prime is 51140254999. The next prime is 51140255029. The reversal of 51140255011 is 11055204115.

51140255011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 51140255011 - 27 = 51140254883 is a prime.

It is a super-2 number, since 2×511402550112 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51140355011) 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, 4059561 + ... + 4072138.

It is an arithmetic number, because the mean of its divisors is an integer number (6749311000).

Almost surely, 251140255011 is an apocalyptic number.

51140255011 is a deficient number, since it is larger than the sum of its proper divisors (2854232989).

51140255011 is a wasteful number, since it uses less digits than its factorization.

51140255011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8132049.

The product of its (nonzero) digits is 1000, while the sum is 25.

Adding to 51140255011 its reverse (11055204115), we get a palindrome (62195459126).

The spelling of 51140255011 in words is "fifty-one billion, one hundred forty million, two hundred fifty-five thousand, eleven".

Divisors: 1 19 331 6289 8131699 154502281 2691592369 51140255011