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30297 = 310099
BaseRepresentation
bin111011001011001
31112120010
413121121
51432142
6352133
7154221
oct73131
945503
1030297
1120843
1215649
1310a37
14b081
158e9c
hex7659

30297 has 4 divisors (see below), whose sum is σ = 40400. Its totient is φ = 20196.

The previous prime is 30293. The next prime is 30307. The reversal of 30297 is 79203.

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 not a de Polignac number, because 30297 - 22 = 30293 is a prime.

It is a D-number.

It is a Duffinian number.

30297 is a modest number, since divided by 297 gives 3 as remainder.

It is not an unprimeable number, because it can be changed into a prime (30293) 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, 5047 + ... + 5052.

It is an arithmetic number, because the mean of its divisors is an integer number (10100).

230297 is an apocalyptic number.

It is an amenable number.

30297 is a deficient number, since it is larger than the sum of its proper divisors (10103).

30297 is a wasteful number, since it uses less digits than its factorization.

30297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10102.

The product of its (nonzero) digits is 378, while the sum is 21.

The square root of 30297 is about 174.0603343671. The cubic root of 30297 is about 31.1745272035.

Subtracting from 30297 its sum of digits (21), we obtain a square (30276 = 1742).

The spelling of 30297 in words is "thirty thousand, two hundred ninety-seven".

Divisors: 1 3 10099 30297