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47711207617 = 144593329969
BaseRepresentation
bin101100011011110011…
…110100000011000001
311120011002001110201121
4230123303310003001
51240203032120432
633530200432241
73306220400443
oct543363640301
9146132043647
1047711207617
11192638074a7
1292b6478681
13466481ccc8
14244877c493
151393989197
hexb1bcf40c1

47711207617 has 4 divisors (see below), whose sum is σ = 47711682180. Its totient is φ = 47710733056.

The previous prime is 47711207527. The next prime is 47711207627. The reversal of 47711207617 is 71670211774.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 4460102656 + 43251104961 = 66784^2 + 207969^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-47711207617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47711207627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20392 + ... + 309577.

It is an arithmetic number, because the mean of its divisors is an integer number (11927920545).

Almost surely, 247711207617 is an apocalyptic number.

It is an amenable number.

47711207617 is a deficient number, since it is larger than the sum of its proper divisors (474563).

47711207617 is a wasteful number, since it uses less digits than its factorization.

47711207617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474562.

The product of its (nonzero) digits is 115248, while the sum is 43.

The spelling of 47711207617 in words is "forty-seven billion, seven hundred eleven million, two hundred seven thousand, six hundred seventeen".

Divisors: 1 144593 329969 47711207617