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10749 = 33583
BaseRepresentation
bin10100111111101
3112202010
42213331
5320444
6121433
743224
oct24775
915663
1010749
118092
126279
134b7b
143cbb
1532b9
hex29fd

10749 has 4 divisors (see below), whose sum is σ = 14336. Its totient is φ = 7164.

The previous prime is 10739. The next prime is 10753. The reversal of 10749 is 94701.

10749 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 94701 = 331567.

It is not a de Polignac number, because 10749 - 24 = 10733 is a prime.

It is a D-number.

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

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10709) 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, 1789 + ... + 1794.

It is an arithmetic number, because the mean of its divisors is an integer number (3584).

210749 is an apocalyptic number.

It is an amenable number.

10749 is a deficient number, since it is larger than the sum of its proper divisors (3587).

10749 is an equidigital number, since it uses as much as digits as its factorization.

10749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3586.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 10749 is about 103.6773842263. The cubic root of 10749 is about 22.0693404491.

The spelling of 10749 in words is "ten thousand, seven hundred forty-nine".

Divisors: 1 3 3583 10749