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30017304 = 23365147
BaseRepresentation
bin111001010000…
…0011100011000
32002111001000000
41302200130120
530141023204
62551213000
7513100002
oct162403430
962431000
1030017304
1115a42499
12a077160
1362acb25
143db5372
15297e039
hex1ca0718

30017304 has 56 divisors (see below), whose sum is σ = 84401460. Its totient is φ = 10003824.

The previous prime is 30017243. The next prime is 30017333. The reversal of 30017304 is 40371003.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 3259 + ... + 8405.

Almost surely, 230017304 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 30017304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42200730).

30017304 is an abundant number, since it is smaller than the sum of its proper divisors (54384156).

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

30017304 is an equidigital number, since it uses as much as digits as its factorization.

30017304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5171 (or 5152 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 30017304 is about 5478.8049791903. The cubic root of 30017304 is about 310.7829808364.

Adding to 30017304 its reverse (40371003), we get a palindrome (70388307).

The spelling of 30017304 in words is "thirty million, seventeen thousand, three hundred four".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 36 54 72 81 108 162 216 243 324 486 648 729 972 1458 1944 2916 5147 5832 10294 15441 20588 30882 41176 46323 61764 92646 123528 138969 185292 277938 370584 416907 555876 833814 1111752 1250721 1667628 2501442 3335256 3752163 5002884 7504326 10005768 15008652 30017304