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830304 = 2533312
BaseRepresentation
bin11001010101101100000
31120011222000
43022231200
5203032204
625444000
710025466
oct3125540
91504860
10830304
11517902
12340600
13230c07
14178836
15116039
hexcab60

830304 has 72 divisors (see below), whose sum is σ = 2502360. Its totient is φ = 267840.

The previous prime is 830293. The next prime is 830309. The reversal of 830304 is 403038.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (830309) by changing a digit.

830304 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 11 ways as a sum of consecutive naturals, for example, 26769 + ... + 26799.

It is an arithmetic number, because the mean of its divisors is an integer number (34755).

2830304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 830304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1251180).

830304 is an abundant number, since it is smaller than the sum of its proper divisors (1672056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

830304 is a wasteful number, since it uses less digits than its factorization.

830304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81 (or 36 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 830304 is about 911.2101843153. The cubic root of 830304 is about 93.9894359639.

The spelling of 830304 in words is "eight hundred thirty thousand, three hundred four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 31 32 36 48 54 62 72 93 96 108 124 144 186 216 248 279 288 372 432 496 558 744 837 864 961 992 1116 1488 1674 1922 2232 2883 2976 3348 3844 4464 5766 6696 7688 8649 8928 11532 13392 15376 17298 23064 25947 26784 30752 34596 46128 51894 69192 92256 103788 138384 207576 276768 415152 830304