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30230832 = 24323139197
BaseRepresentation
bin111001101010…
…0100100110000
32002212212220110
41303110210300
530214341312
62555541320
7514646352
oct163244460
962785813
1030230832
1116078965
12a15a840
136356088
14402d0d2
1529c243c
hex1cd4930

30230832 has 80 divisors (see below), whose sum is σ = 82494720. Its totient is φ = 9520896.

The previous prime is 30230819. The next prime is 30230839. The reversal of 30230832 is 23803203.

It is a junction number, because it is equal to n+sod(n) for n = 30230799 and 30230808.

It is not an unprimeable number, because it can be changed into a prime (30230839) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 153358 + ... + 153554.

It is an arithmetic number, because the mean of its divisors is an integer number (1031184).

Almost surely, 230230832 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 30230832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41247360).

30230832 is an abundant number, since it is smaller than the sum of its proper divisors (52263888).

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

30230832 is a wasteful number, since it uses less digits than its factorization.

30230832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370 (or 364 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 30230832 is about 5498.2571784157. The cubic root of 30230832 is about 311.5181582820.

The spelling of 30230832 in words is "thirty million, two hundred thirty thousand, eight hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 16 23 24 46 48 69 92 138 139 184 197 276 278 368 394 417 552 556 591 788 834 1104 1112 1182 1576 1668 2224 2364 3152 3197 3336 4531 4728 6394 6672 9062 9456 9591 12788 13593 18124 19182 25576 27186 27383 36248 38364 51152 54372 54766 72496 76728 82149 108744 109532 153456 164298 217488 219064 328596 438128 629809 657192 1259618 1314384 1889427 2519236 3778854 5038472 7557708 10076944 15115416 30230832