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2983 = 19157
BaseRepresentation
bin101110100111
311002111
4232213
543413
621451
711461
oct5647
94074
102983
112272
121887
131486
141131
15d3d
hexba7

2983 has 4 divisors (see below), whose sum is σ = 3160. Its totient is φ = 2808.

The previous prime is 2971. The next prime is 2999. The reversal of 2983 is 3892.

Subtracting 2983 from its reverse (3892), we obtain a palindrome (909).

2983 is nontrivially palindromic in base 15.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2983 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

2983 is an undulating number in base 15.

2983 is a lucky number.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2903) 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, 60 + ... + 97.

It is an arithmetic number, because the mean of its divisors is an integer number (790).

2983 is a deficient number, since it is larger than the sum of its proper divisors (177).

2983 is a wasteful number, since it uses less digits than its factorization.

2983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176.

The product of its digits is 432, while the sum is 22.

The square root of 2983 is about 54.6168472177. The cubic root of 2983 is about 14.3952015905.

The spelling of 2983 in words is "two thousand, nine hundred eighty-three".

Divisors: 1 19 157 2983