Search a number
-
+
48979 = 76997
BaseRepresentation
bin1011111101010011
32111012001
423331103
53031404
61014431
7262540
oct137523
974161
1048979
1133887
1224417
13193a8
1413bc7
15e7a4
hexbf53

48979 has 4 divisors (see below), whose sum is σ = 55984. Its totient is φ = 41976.

The previous prime is 48973. The next prime is 48989. The reversal of 48979 is 97984.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 48979 - 25 = 48947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3492 + ... + 3505.

It is an arithmetic number, because the mean of its divisors is an integer number (13996).

248979 is an apocalyptic number.

48979 is a deficient number, since it is larger than the sum of its proper divisors (7005).

48979 is an equidigital number, since it uses as much as digits as its factorization.

48979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7004.

The product of its digits is 18144, while the sum is 37.

The square root of 48979 is about 221.3119969636. The cubic root of 48979 is about 36.5878287737.

The spelling of 48979 in words is "forty-eight thousand, nine hundred seventy-nine".

Divisors: 1 7 6997 48979