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71101 = 97733
BaseRepresentation
bin10001010110111101
310121112101
4101112331
54233401
61305101
7414202
oct212675
9117471
1071101
1149468
1235191
1326494
141bca9
1516101
hex115bd

71101 has 4 divisors (see below), whose sum is σ = 71932. Its totient is φ = 70272.

The previous prime is 71089. The next prime is 71119. The reversal of 71101 is 10117.

71101 is nontrivially palindromic in base 3.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10117 = 67151.

It can be written as a sum of positive squares in 2 ways, for example, as 55225 + 15876 = 235^2 + 126^2 .

It is a cyclic number.

It is not a de Polignac number, because 71101 - 25 = 71069 is a prime.

It is a Duffinian number.

71101 is a lucky number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270 + ... + 463.

It is an arithmetic number, because the mean of its divisors is an integer number (17983).

271101 is an apocalyptic number.

It is an amenable number.

71101 is a deficient number, since it is larger than the sum of its proper divisors (831).

71101 is an equidigital number, since it uses as much as digits as its factorization.

71101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830.

The product of its (nonzero) digits is 7, while the sum is 10.

The square root of 71101 is about 266.6477076594. The cubic root of 71101 is about 41.4278030547.

Adding to 71101 its reverse (10117), we get a palindrome (81218).

The spelling of 71101 in words is "seventy-one thousand, one hundred one", and thus it is an iban number.

Divisors: 1 97 733 71101