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308030 = 2530803
BaseRepresentation
bin1001011001100111110
3120122112112
41023030332
534324110
610334022
72422022
oct1131476
9518475
10308030
111a0478
1212a312
13aa288
1480382
1561405
hex4b33e

308030 has 8 divisors (see below), whose sum is σ = 554472. Its totient is φ = 123208.

The previous prime is 308027. The next prime is 308041. The reversal of 308030 is 30803.

308030 = 2762 + 2772 + ... + 2792.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 307996 and 308014.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 15392 + ... + 15411.

It is an arithmetic number, because the mean of its divisors is an integer number (69309).

2308030 is an apocalyptic number.

308030 is a deficient number, since it is larger than the sum of its proper divisors (246442).

308030 is a wasteful number, since it uses less digits than its factorization.

308030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30810.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 308030 is about 555.0045044862. The cubic root of 308030 is about 67.5353267300.

Adding to 308030 its reverse (30803), we get a palindrome (338833).

The spelling of 308030 in words is "three hundred eight thousand, thirty".

Divisors: 1 2 5 10 30803 61606 154015 308030