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47605813 is a prime number
BaseRepresentation
bin1011010110011…
…0100000110101
310022120121220021
42311212200311
544141341223
64420205141
71115433313
oct265464065
9108517807
1047605813
1124965a52
1213b397b1
139b2a728
1464730b3
1542a565d
hex2d66835

47605813 has 2 divisors, whose sum is σ = 47605814. Its totient is φ = 47605812.

The previous prime is 47605807. The next prime is 47605829. The reversal of 47605813 is 31850674.

47605813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47582404 + 23409 = 6898^2 + 153^2 .

It is a cyclic number.

It is not a de Polignac number, because 47605813 - 25 = 47605781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47605843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23802906 + 23802907.

It is an arithmetic number, because the mean of its divisors is an integer number (23802907).

Almost surely, 247605813 is an apocalyptic number.

It is an amenable number.

47605813 is a deficient number, since it is larger than the sum of its proper divisors (1).

47605813 is an equidigital number, since it uses as much as digits as its factorization.

47605813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 47605813 is about 6899.6965875319. The cubic root of 47605813 is about 362.4265420713.

The spelling of 47605813 in words is "forty-seven million, six hundred five thousand, eight hundred thirteen".