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51152313041 = 73700716617
BaseRepresentation
bin101111101000111010…
…100101101011010001
311220000220002201221122
4233220322211223101
51314224443004131
635255443332025
73460413325664
oct575072455321
9156026081848
1051152313041
111a76a168985
129ab6981015
134a9270886b
1426937a96db
1514e5b10d7b
hexbe8ea5ad1

51152313041 has 4 divisors (see below), whose sum is σ = 51853029732. Its totient is φ = 50451596352.

The previous prime is 51152313029. The next prime is 51152313067. The reversal of 51152313041 is 14031325115.

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 44049194641 + 7103118400 = 209879^2 + 84280^2 .

It is a cyclic number.

It is not a de Polignac number, because 51152313041 - 26 = 51152312977 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51152313041.

It is not an unprimeable number, because it can be changed into a prime (51152313011) 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, 350358236 + ... + 350358381.

It is an arithmetic number, because the mean of its divisors is an integer number (12963257433).

Almost surely, 251152313041 is an apocalyptic number.

It is an amenable number.

51152313041 is a deficient number, since it is larger than the sum of its proper divisors (700716691).

51152313041 is an equidigital number, since it uses as much as digits as its factorization.

51152313041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700716690.

The product of its (nonzero) digits is 1800, while the sum is 26.

Adding to 51152313041 its reverse (14031325115), we get a palindrome (65183638156).

The spelling of 51152313041 in words is "fifty-one billion, one hundred fifty-two million, three hundred thirteen thousand, forty-one".

Divisors: 1 73 700716617 51152313041