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8120867471 is a prime number
BaseRepresentation
bin1111001000000101…
…01001101010001111
3202221221211210220022
413210002221222033
5113112420224341
63421454212355
7405146143313
oct74402515217
922857753808
108120867471
113498021a22
1216a77b40bb
139c55b1b32
1457076bb43
15327e22e4b
hex1e40a9a8f

8120867471 has 2 divisors, whose sum is σ = 8120867472. Its totient is φ = 8120867470.

The previous prime is 8120867467. The next prime is 8120867507. The reversal of 8120867471 is 1747680218.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8120867471 - 22 = 8120867467 is a prime.

It is a super-3 number, since 3×81208674713 (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8120867431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4060433735 + 4060433736.

It is an arithmetic number, because the mean of its divisors is an integer number (4060433736).

Almost surely, 28120867471 is an apocalyptic number.

8120867471 is a deficient number, since it is larger than the sum of its proper divisors (1).

8120867471 is an equidigital number, since it uses as much as digits as its factorization.

8120867471 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 150528, while the sum is 44.

The square root of 8120867471 is about 90115.8558245995. The cubic root of 8120867471 is about 2010.0219852714.

The spelling of 8120867471 in words is "eight billion, one hundred twenty million, eight hundred sixty-seven thousand, four hundred seventy-one".