Search a number
48917 = 114447
BaseRepresentation
bin1011111100010101
32111002202
423330111
53031132
61014245
7262421
oct137425
974082
1048917
1133830
1224385
131935b
1413b81
15e762
hexbf15

48917 has 4 divisors (see below), whose sum is σ = 53376. Its totient is φ = 44460.

The previous prime is 48907. The next prime is 48947. The reversal of 48917 is 71984.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 48917 - 28 = 48661 is a prime.

It is a super-3 number, since 3×489173 = 351156489333639, which contains 333 as substring.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 48917.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48907) 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, 2213 + ... + 2234.

It is an arithmetic number, because the mean of its divisors is an integer number (13344).

248917 is an apocalyptic number.

It is an amenable number.

48917 is a deficient number, since it is larger than the sum of its proper divisors (4459).

48917 is a wasteful number, since it uses less digits than its factorization.

48917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4458.

The product of its digits is 2016, while the sum is 29.

The square root of 48917 is about 221.1718788635. The cubic root of 48917 is about 36.5723840373.

The spelling of 48917 in words is "forty-eight thousand, nine hundred seventeen".

Divisors: 1 11 4447 48917