48931 has 4 divisors (see below), whose sum is σ = 49392. Its totient is φ = 48472.
The previous prime is 48907. The next prime is 48947. The reversal of 48931 is 13984.
It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.
It is a cyclic number.
It is not a de Polignac number, because 48931 - 213 = 40739 is a prime.
It is a super-2 number, since 2×489312 = 4788485522, which contains 22 as substring.
It is an Ulam number.
It is a Duffinian number.
It is a nialpdrome in base 15.
It is a junction number, because it is equal to n+sod(n) for n = 48896 and 48905.
It is not an unprimeable number, because it can be changed into a prime (48991) 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, 21 + ... + 313.
It is an arithmetic number, because the mean of its divisors is an integer number (12348).
248931 is an apocalyptic number.
48931 is a deficient number, since it is larger than the sum of its proper divisors (461).
48931 is a wasteful number, since it uses less digits than its factorization.
48931 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 460.
The product of its digits is 864, while the sum is 25.
The square root of 48931 is about 221.2035261925. The cubic root of 48931 is about 36.5758726986.
It can be divided in two parts, 48 and 931, that added together give a palindrome (979).
The spelling of 48931 in words is "forty-eight thousand, nine hundred thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.000 sec. • engine limits •