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3149 = 4767
BaseRepresentation
bin110001001101
311022122
4301031
5100044
622325
712116
oct6115
94278
103149
112403
1219a5
131583
14120d
15dee
hexc4d

3149 has 4 divisors (see below), whose sum is σ = 3264. Its totient is φ = 3036.

The previous prime is 3137. The next prime is 3163. The reversal of 3149 is 9413.

3149 is digitally balanced in base 2, 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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-3149 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 15.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 3149.

It is not an unprimeable number, because it can be changed into a prime (3109) 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, 14 + ... + 80.

It is an arithmetic number, because the mean of its divisors is an integer number (816).

23149 is an apocalyptic number.

It is an amenable number.

3149 is a deficient number, since it is larger than the sum of its proper divisors (115).

3149 is an equidigital number, since it uses as much as digits as its factorization.

3149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114.

The product of its digits is 108, while the sum is 17.

The square root of 3149 is about 56.1159513864. The cubic root of 3149 is about 14.6574207106.

It can be divided in two parts, 314 and 9, that added together give a palindrome (323).

The spelling of 3149 in words is "three thousand, one hundred forty-nine".

Divisors: 1 47 67 3149