30355 has 8 divisors (see below), whose sum is σ = 39312. Its totient is φ = 22368.
The previous prime is 30347. The next prime is 30367. The reversal of 30355 is 55303.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 30355 - 23 = 30347 is a prime.
It is a plaindrome in base 9.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169 + ... + 298.
It is an arithmetic number, because the mean of its divisors is an integer number (4914).
230355 is an apocalyptic number.
30355 is a deficient number, since it is larger than the sum of its proper divisors (8957).
30355 is a wasteful number, since it uses less digits than its factorization.
30355 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 485.
The product of its (nonzero) digits is 225, while the sum is 16.
The square root of 30355 is about 174.2268636003. The cubic root of 30355 is about 31.1944078296.
Adding to 30355 its reverse (55303), we get a palindrome (85658).
The spelling of 30355 in words is "thirty thousand, three hundred fifty-five".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.067 sec. • engine limits •