Search a number
-
+
2120065471 is a prime number
BaseRepresentation
bin111111001011101…
…1010000110111111
312110202021111002101
41332113122012333
513320214043341
6550212205531
7103352154616
oct17627320677
95422244071
102120065471
119987a3627
124b20098a7
1327a2c5014
141617d087d
15c61cc831
hex7e5da1bf

2120065471 has 2 divisors, whose sum is σ = 2120065472. Its totient is φ = 2120065470.

The previous prime is 2120065399. The next prime is 2120065481. The reversal of 2120065471 is 1745600212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2120065471 - 29 = 2120064959 is a prime.

It is a super-3 number, since 3×21200654713 (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2120065481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060032735 + 1060032736.

It is an arithmetic number, because the mean of its divisors is an integer number (1060032736).

Almost surely, 22120065471 is an apocalyptic number.

2120065471 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120065471 is an equidigital number, since it uses as much as digits as its factorization.

2120065471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 2120065471 is about 46044.1686970239. The cubic root of 2120065471 is about 1284.6448818089.

Adding to 2120065471 its reverse (1745600212), we get a palindrome (3865665683).

The spelling of 2120065471 in words is "two billion, one hundred twenty million, sixty-five thousand, four hundred seventy-one".