Base | Representation |
---|---|
bin | 1000011111111… |
… | …11001111100111 |
3 | 11222011102022101 |
4 | 10033333033213 |
5 | 121223100241 |
6 | 11024112531 |
7 | 1524016633 |
oct | 417771747 |
9 | 158142271 |
10 | 71300071 |
11 | 37279887 |
12 | 1ba65747 |
13 | 11a054bb |
14 | 967ddc3 |
15 | 63d5e31 |
hex | 43ff3e7 |
71300071 has 4 divisors (see below), whose sum is σ = 72159192. Its totient is φ = 70440952.
The previous prime is 71300059. The next prime is 71300083. The reversal of 71300071 is 17000317.
It is a happy number.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17000317 = 97 ⋅175261.
It is an interprime number because it is at equal distance from previous prime (71300059) and next prime (71300083).
It is a cyclic number.
It is not a de Polignac number, because 71300071 - 25 = 71300039 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (71300011) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 429436 + ... + 429601.
It is an arithmetic number, because the mean of its divisors is an integer number (18039798).
Almost surely, 271300071 is an apocalyptic number.
71300071 is a deficient number, since it is larger than the sum of its proper divisors (859121).
71300071 is an equidigital number, since it uses as much as digits as its factorization.
71300071 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 859120.
The product of its (nonzero) digits is 147, while the sum is 19.
The square root of 71300071 is about 8443.9369372349. The cubic root of 71300071 is about 414.6643068446.
Adding to 71300071 its reverse (17000317), we get a palindrome (88300388).
It can be divided in two parts, 7 and 1300071, that added together give a triangular number (1300078 = T1612).
The spelling of 71300071 in words is "seventy-one million, three hundred thousand, seventy-one".
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