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30302 = 2109139
BaseRepresentation
bin111011001011110
31112120022
413121132
51432202
6352142
7154226
oct73136
945508
1030302
1120848
1215652
1310a3c
14b086
158ea2
hex765e

30302 has 8 divisors (see below), whose sum is σ = 46200. Its totient is φ = 14904.

The previous prime is 30293. The next prime is 30307. The reversal of 30302 is 20303.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×303022 = 1836422408, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30307) by changing a digit.

30302 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149 + ... + 287.

It is an arithmetic number, because the mean of its divisors is an integer number (5775).

230302 is an apocalyptic number.

30302 is a deficient number, since it is larger than the sum of its proper divisors (15898).

30302 is a wasteful number, since it uses less digits than its factorization.

30302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250.

The product of its (nonzero) digits is 18, while the sum is 8.

The square root of 30302 is about 174.0746966104. The cubic root of 30302 is about 31.1762420494.

Adding to 30302 its reverse (20303), we get a palindrome (50605).

Subtracting from 30302 its reverse (20303), we obtain a palindrome (9999).

The spelling of 30302 in words is "thirty thousand, three hundred two".

Divisors: 1 2 109 139 218 278 15151 30302