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47161412317 = 402111728777
BaseRepresentation
bin101011111011000010…
…100000101011011101
311111201202111222100201
4223323002200223131
51233041310143232
633355440423501
73256463250625
oct537302405335
9144652458321
1047161412317
111900142a118
129182317b91
1345a7951a46
1423d5743885
151360586be7
hexafb0a0add

47161412317 has 4 divisors (see below), whose sum is σ = 47173145116. Its totient is φ = 47149679520.

The previous prime is 47161412293. The next prime is 47161412369. The reversal of 47161412317 is 71321416174.

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 5321118916 + 41840293401 = 72946^2 + 204549^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-47161412317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47162412317) 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 3 ways as a sum of consecutive naturals, for example, 5860368 + ... + 5868409.

It is an arithmetic number, because the mean of its divisors is an integer number (11793286279).

Almost surely, 247161412317 is an apocalyptic number.

It is an amenable number.

47161412317 is a deficient number, since it is larger than the sum of its proper divisors (11732799).

47161412317 is a wasteful number, since it uses less digits than its factorization.

47161412317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11732798.

The product of its digits is 28224, while the sum is 37.

The spelling of 47161412317 in words is "forty-seven billion, one hundred sixty-one million, four hundred twelve thousand, three hundred seventeen".

Divisors: 1 4021 11728777 47161412317