71248 has 20 divisors (see below), whose sum is σ = 142228. Its totient is φ = 34560.
The previous prime is 71237. The next prime is 71249. The reversal of 71248 is 84217.
It can be written as a sum of positive squares in 2 ways, for example, as 17424 + 53824 = 132^2 + 232^2 .
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (71249) 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, 940 + ... + 1012.
271248 is an apocalyptic number.
It is an amenable number.
71248 is a deficient number, since it is larger than the sum of its proper divisors (70980).
71248 is a wasteful number, since it uses less digits than its factorization.
71248 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 142 (or 136 counting only the distinct ones).
The product of its digits is 448, while the sum is 22.
The square root of 71248 is about 266.9232099312. The cubic root of 71248 is about 41.4563338065.
The spelling of 71248 in words is "seventy-one thousand, two hundred forty-eight".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.140 sec. • engine limits •