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30353 = 127239
BaseRepresentation
bin111011010010001
31112122012
413122101
51432403
6352305
7154331
oct73221
945565
1030353
1120894
1215695
1310a7b
14b0c1
158ed8
hex7691

30353 has 4 divisors (see below), whose sum is σ = 30720. Its totient is φ = 29988.

The previous prime is 30347. The next prime is 30367. The reversal of 30353 is 35303.

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, and also an emirpimes, since its reverse is a distinct semiprime: 35303 = 43821.

It is a cyclic number.

It is not a de Polignac number, because 30353 - 28 = 30097 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (30313) 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, 8 + ... + 246.

It is an arithmetic number, because the mean of its divisors is an integer number (7680).

230353 is an apocalyptic number.

It is an amenable number.

30353 is a deficient number, since it is larger than the sum of its proper divisors (367).

30353 is a wasteful number, since it uses less digits than its factorization.

30353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366.

The product of its (nonzero) digits is 135, while the sum is 14.

The square root of 30353 is about 174.2211238628. The cubic root of 30353 is about 31.1937227126.

Adding to 30353 its reverse (35303), we get a palindrome (65656).

Subtracting 30353 from its reverse (35303), we obtain a triangular number (4950 = T99).

It can be divided in two parts, 30 and 353, that added together give a palindrome (383).

The spelling of 30353 in words is "thirty thousand, three hundred fifty-three".

Divisors: 1 127 239 30353