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BaseRepresentation
bin1001100010001
320200210
41030101
5124011
634333
720142
oct11421
96623
104881
113738
1229a9
1322b6
141ac9
1516a6
hex1311

4881 has 4 divisors (see below), whose sum is σ = 6512. Its totient is φ = 3252.

The previous prime is 4877. The next prime is 4889. The reversal of 4881 is 1884.

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 not a de Polignac number, because 4881 - 22 = 4877 is a prime.

It is a super-2 number, since 2×48812 = 47648322, which contains 22 as substring.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

4881 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 811 + ... + 816.

It is an arithmetic number, because the mean of its divisors is an integer number (1628).

It is an amenable number.

4881 is a deficient number, since it is larger than the sum of its proper divisors (1631).

4881 is a wasteful number, since it uses less digits than its factorization.

4881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1630.

The product of its digits is 256, while the sum is 21.

The square root of 4881 is about 69.8641538988. The cubic root of 4881 is about 16.9630106943.

The spelling of 4881 in words is "four thousand, eight hundred eighty-one".

Divisors: 1 3 1627 4881