Search a number
1529 = 11139
BaseRepresentation
bin10111111001
32002122
4113321
522104
611025
74313
oct2771
92078
101529
111170
12a75
13908
147b3
156be
hex5f9

1529 has 4 divisors (see below), whose sum is σ = 1680. Its totient is φ = 1380.

The previous prime is 1523. The next prime is 1531. The reversal of 1529 is 9251.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1529 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (1523) 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, 59 + ... + 80.

It is an arithmetic number, because the mean of its divisors is an integer number (420).

It is an amenable number.

1529 is a deficient number, since it is larger than the sum of its proper divisors (151).

1529 is a wasteful number, since it uses less digits than its factorization.

1529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150.

The product of its digits is 90, while the sum is 17.

The square root of 1529 is about 39.1024295920. The cubic root of 1529 is about 11.5204425306.

It can be divided in two parts, 152 and 9, that added together give a palindrome (161).

The spelling of 1529 in words is "one thousand, five hundred twenty-nine".

Divisors: 1 11 139 1529