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48921 = 323709
BaseRepresentation
bin1011111100011001
32111002220
423330121
53031141
61014253
7262425
oct137431
974086
1048921
1133834
1224389
1319362
1413b85
15e766
hexbf19

48921 has 8 divisors (see below), whose sum is σ = 68160. Its totient is φ = 31152.

The previous prime is 48907. The next prime is 48947. The reversal of 48921 is 12984.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 48921 - 25 = 48889 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

48921 is a lucky number.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 48891 and 48900.

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 7 ways as a sum of consecutive naturals, for example, 286 + ... + 423.

It is an arithmetic number, because the mean of its divisors is an integer number (8520).

248921 is an apocalyptic number.

It is an amenable number.

48921 is a deficient number, since it is larger than the sum of its proper divisors (19239).

48921 is a wasteful number, since it uses less digits than its factorization.

48921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735.

The product of its digits is 576, while the sum is 24.

The square root of 48921 is about 221.1809214195. The cubic root of 48921 is about 36.5733808656.

Subtracting from 48921 its reverse (12984), we obtain a cube (35937 = 333).

It can be divided in two parts, 48 and 921, that added together give a palindrome (969).

The spelling of 48921 in words is "forty-eight thousand, nine hundred twenty-one".

Divisors: 1 3 23 69 709 2127 16307 48921