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51500432314241 = 219278923486269
BaseRepresentation
bin10111011010110111000001…
…11110010100111110000001
320202100101121200021020111222
423231123200332110332001
523222240341133023431
6301310545541044425
713563532502566061
oct1355334076247601
9222311550236458
1051500432314241
1115456235478579
1259391666b6715
132297615583311
14ca08c444b3a1
155e499ee5257b
hex2ed6e0f94f81

51500432314241 has 4 divisors (see below), whose sum is σ = 51500457993300. Its totient is φ = 51500406635184.

The previous prime is 51500432314217. The next prime is 51500432314327. The reversal of 51500432314241 is 14241323400515.

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 25098346530625 + 26402085783616 = 5009825^2 + 5138296^2 .

It is a cyclic number.

It is not a de Polignac number, because 51500432314241 - 210 = 51500432313217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51500432319241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9550346 + ... + 13935923.

It is an arithmetic number, because the mean of its divisors is an integer number (12875114498325).

Almost surely, 251500432314241 is an apocalyptic number.

It is an amenable number.

51500432314241 is a deficient number, since it is larger than the sum of its proper divisors (25679059).

51500432314241 is a wasteful number, since it uses less digits than its factorization.

51500432314241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25679058.

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 51500432314241 its reverse (14241323400515), we get a palindrome (65741755714756).

The spelling of 51500432314241 in words is "fifty-one trillion, five hundred billion, four hundred thirty-two million, three hundred fourteen thousand, two hundred forty-one".

Divisors: 1 2192789 23486269 51500432314241