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30343230 = 2325615527
BaseRepresentation
bin111001111000…
…0000000111110
32010002121002100
41303300000332
530231440410
63002205530
7515625141
oct163600076
963077070
1030343230
1116145355
12a1b38a6
136395298
14405c058
1529e58c0
hex1cf003e

30343230 has 48 divisors (see below), whose sum is σ = 80200224. Its totient is φ = 7957440.

The previous prime is 30343211. The next prime is 30343231. The reversal of 30343230 is 3234303.

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

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30343231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2727 + ... + 8253.

It is an arithmetic number, because the mean of its divisors is an integer number (1670838).

Almost surely, 230343230 is an apocalyptic number.

30343230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30343230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40100112).

30343230 is an abundant number, since it is smaller than the sum of its proper divisors (49856994).

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

30343230 is a wasteful number, since it uses less digits than its factorization.

30343230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5601 (or 5598 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 18.

The square root of 30343230 is about 5508.4689342866. The cubic root of 30343230 is about 311.9037548303.

Adding to 30343230 its reverse (3234303), we get a palindrome (33577533).

The spelling of 30343230 in words is "thirty million, three hundred forty-three thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 61 90 122 183 305 366 549 610 915 1098 1830 2745 5490 5527 11054 16581 27635 33162 49743 55270 82905 99486 165810 248715 337147 497430 674294 1011441 1685735 2022882 3034323 3371470 5057205 6068646 10114410 15171615 30343230