Search a number
-
+
71010111109979 is a prime number
BaseRepresentation
bin10000001001010101010100…
…011100101011101101011011
3100022102111111201212210122102
4100021111110130223231123
533301412201421004404
6411005332242114015
720646211515300566
oct2011252434535533
9308374451783572
1071010111109979
1120698245545658
127b6a29a64b90b
1330812bc9c3352
141376c9cab54dd
15832208c6671e
hex40955472bb5b

71010111109979 has 2 divisors, whose sum is σ = 71010111109980. Its totient is φ = 71010111109978.

The previous prime is 71010111109963. The next prime is 71010111109997. The reversal of 71010111109979 is 97990111101017.

Together with next prime (71010111109997) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 71010111109979 - 24 = 71010111109963 is a prime.

It is not a weakly prime, because it can be changed into another prime (71010111109939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35505055554989 + 35505055554990.

It is an arithmetic number, because the mean of its divisors is an integer number (35505055554990).

Almost surely, 271010111109979 is an apocalyptic number.

71010111109979 is a deficient number, since it is larger than the sum of its proper divisors (1).

71010111109979 is an equidigital number, since it uses as much as digits as its factorization.

71010111109979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35721, while the sum is 47.

The spelling of 71010111109979 in words is "seventy-one trillion, ten billion, one hundred eleven million, one hundred nine thousand, nine hundred seventy-nine".