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47304154661 = 172782597333
BaseRepresentation
bin101100000011100011…
…000001111000100101
311112002201010001001012
4230003203001320211
51233334330422121
633421540112005
73263145452231
oct540343017045
9145081101035
1047304154661
1119074a645a5
129202095605
1345cb3ac37a
14240a69d5c1
15136cd80c5b
hexb038c1e25

47304154661 has 4 divisors (see below), whose sum is σ = 50086752012. Its totient is φ = 44521557312.

The previous prime is 47304154657. The next prime is 47304154699. The reversal of 47304154661 is 16645140374.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16645140374 = 28322570187.

It can be written as a sum of positive squares in 2 ways, for example, as 41816160100 + 5487994561 = 204490^2 + 74081^2 .

It is not a de Polignac number, because 47304154661 - 22 = 47304154657 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 (47304154561) 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, 1391298650 + ... + 1391298683.

It is an arithmetic number, because the mean of its divisors is an integer number (12521688003).

Almost surely, 247304154661 is an apocalyptic number.

It is an amenable number.

47304154661 is a deficient number, since it is larger than the sum of its proper divisors (2782597351).

47304154661 is a wasteful number, since it uses less digits than its factorization.

47304154661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2782597350.

The product of its (nonzero) digits is 241920, while the sum is 41.

The spelling of 47304154661 in words is "forty-seven billion, three hundred four million, one hundred fifty-four thousand, six hundred sixty-one".

Divisors: 1 17 2782597333 47304154661