Search a number
-
+
15049 = 101149
BaseRepresentation
bin11101011001001
3202122101
43223021
5440144
6153401
761606
oct35311
922571
1015049
1110341
128861
136b08
1456ad
1546d4
hex3ac9

15049 has 4 divisors (see below), whose sum is σ = 15300. Its totient is φ = 14800.

The previous prime is 15031. The next prime is 15053. The reversal of 15049 is 94051.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 94051 = 163577.

It can be written as a sum of positive squares in 2 ways, for example, as 8649 + 6400 = 93^2 + 80^2 .

It is a cyclic number.

It is not a de Polignac number, because 15049 - 25 = 15017 is a prime.

It is a Duffinian number.

15049 is a lucky number.

It is a plaindrome in base 14.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (15149) 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, 27 + ... + 175.

It is an arithmetic number, because the mean of its divisors is an integer number (3825).

215049 is an apocalyptic number.

It is an amenable number.

15049 is a deficient number, since it is larger than the sum of its proper divisors (251).

15049 is a wasteful number, since it uses less digits than its factorization.

15049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 15049 is about 122.6743657004. The cubic root of 15049 is about 24.6889458642.

It can be divided in two parts, 1 and 5049, that added together give a triangular number (5050 = T100).

The spelling of 15049 in words is "fifteen thousand, forty-nine".

Divisors: 1 101 149 15049