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47915213369 is a prime number
BaseRepresentation
bin101100100111111110…
…000010001000111001
311120200021221001000012
4230213332002020321
51241112243311434
634002325151305
73314245410422
oct544776021071
9146607831005
1047915213369
1119358985aa1
12935285b535
134697b7a67a
1424678c4649
1513a68353ce
hexb27f82239

47915213369 has 2 divisors, whose sum is σ = 47915213370. Its totient is φ = 47915213368.

The previous prime is 47915213267. The next prime is 47915213377. The reversal of 47915213369 is 96331251974.

47915213369 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47355417769 + 559795600 = 217613^2 + 23660^2 .

It is a cyclic number.

It is not a de Polignac number, because 47915213369 - 28 = 47915213113 is a prime.

It is a super-2 number, since 2×479152133692 (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (47915113369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23957606684 + 23957606685.

It is an arithmetic number, because the mean of its divisors is an integer number (23957606685).

Almost surely, 247915213369 is an apocalyptic number.

It is an amenable number.

47915213369 is a deficient number, since it is larger than the sum of its proper divisors (1).

47915213369 is an equidigital number, since it uses as much as digits as its factorization.

47915213369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1224720, while the sum is 50.

The spelling of 47915213369 in words is "forty-seven billion, nine hundred fifteen million, two hundred thirteen thousand, three hundred sixty-nine".