30159 has 8 divisors (see below), whose sum is σ = 44720. Its totient is φ = 20088.
The previous prime is 30139. The next prime is 30161. The reversal of 30159 is 95103.
It is not a de Polignac number, because 30159 - 211 = 28111 is a prime.
It is a Duffinian number.
30159 is a lucky number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30109) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 532 + ... + 585.
It is an arithmetic number, because the mean of its divisors is an integer number (5590).
230159 is an apocalyptic number.
30159 is a deficient number, since it is larger than the sum of its proper divisors (14561).
30159 is a wasteful number, since it uses less digits than its factorization.
30159 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1126 (or 1120 counting only the distinct ones).
The product of its (nonzero) digits is 135, while the sum is 18.
The square root of 30159 is about 173.6634676609. The cubic root of 30159 is about 31.1271228048.
The spelling of 30159 in words is "thirty thousand, one hundred fifty-nine".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.063 sec. • engine limits •