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BaseRepresentation
bin101111001101
311010220
4233031
544041
621553
711544
oct5715
94126
103021
1122a7
1218b9
1314b5
14115b
15d66
hexbcd

3021 has 8 divisors (see below), whose sum is σ = 4320. Its totient is φ = 1872.

The previous prime is 3019. The next prime is 3023. The reversal of 3021 is 1203.

Adding to 3021 its reverse (1203), we get a palindrome (4224).

It can be divided in two parts, 302 and 1, that added together give a palindrome (303).

3021 is an esthetic number in base 16, because in such base its adjacent digits differ by 1.

It is an interprime number because it is at equal distance from previous prime (3019) and next prime (3023).

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

It is not a de Polignac number, because 3021 - 21 = 3019 is a prime.

It is a Curzon number.

It is a plaindrome in base 14 and base 16.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3023) 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, 31 + ... + 83.

It is an arithmetic number, because the mean of its divisors is an integer number (540).

23021 is an apocalyptic number.

It is an amenable number.

3021 is a deficient number, since it is larger than the sum of its proper divisors (1299).

3021 is a wasteful number, since it uses less digits than its factorization.

3021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75.

The product of its (nonzero) digits is 6, while the sum is 6.

The square root of 3021 is about 54.9636243346. The cubic root of 3021 is about 14.4560699745.

The spelling of 3021 in words is "three thousand, twenty-one", and thus it is an iban number.

Divisors: 1 3 19 53 57 159 1007 3021