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51311611314 = 2322850645073
BaseRepresentation
bin101111110010011010…
…010000110110110010
311220102222211221002200
4233302122100312302
51320041233030224
635323333524030
73464356333305
oct576232206662
9156388757080
1051311611314
111a841081047
129b401a3616
134ab9711ab2
1426aa9d4b3c
151504aca5c9
hexbf2690db2

51311611314 has 12 divisors (see below), whose sum is σ = 111175157886. Its totient is φ = 17103870432.

The previous prime is 51311611313. The next prime is 51311611327. The reversal of 51311611314 is 41311611315.

51311611314 is a `hidden beast` number, since 5 + 1 + 3 + 11 + 611 + 31 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 38920582089 + 12391029225 = 197283^2 + 111315^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51311611313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1425322519 + ... + 1425322554.

Almost surely, 251311611314 is an apocalyptic number.

51311611314 is an abundant number, since it is smaller than the sum of its proper divisors (59863546572).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51311611314 is a wasteful number, since it uses less digits than its factorization.

51311611314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2850645081 (or 2850645078 counting only the distinct ones).

The product of its digits is 1080, while the sum is 27.

Subtracting from 51311611314 its reverse (41311611315), we obtain a palindrome (9999999999).

The spelling of 51311611314 in words is "fifty-one billion, three hundred eleven million, six hundred eleven thousand, three hundred fourteen".

Divisors: 1 2 3 6 9 18 2850645073 5701290146 8551935219 17103870438 25655805657 51311611314