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30568230 = 23257112401
BaseRepresentation
bin111010010011…
…0111100100110
32010112000201200
41310212330212
530311140410
63011103330
7520553130
oct164467446
963460650
1030568230
1116289400
12a2a1b46
136443814
1440ba050
152a3c3c0
hex1d26f26

30568230 has 144 divisors (see below), whose sum is σ = 100088352. Its totient is φ = 6336000.

The previous prime is 30568229. The next prime is 30568231. The reversal of 30568230 is 3286503.

30568230 = 10512 + 10522 + ... + 10772.

It is an interprime number because it is at equal distance from previous prime (30568229) and next prime (30568231).

It is a junction number, because it is equal to n+sod(n) for n = 30568194 and 30568203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30568231) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 76030 + ... + 76430.

It is an arithmetic number, because the mean of its divisors is an integer number (695058).

Almost surely, 230568230 is an apocalyptic number.

30568230 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 30568230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50044176).

30568230 is an abundant number, since it is smaller than the sum of its proper divisors (69520122).

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

30568230 is a wasteful number, since it uses less digits than its factorization.

30568230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443 (or 429 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 30568230 is about 5528.8543116997. The cubic root of 30568230 is about 312.6727961685.

The spelling of 30568230 in words is "thirty million, five hundred sixty-eight thousand, two hundred thirty".

Divisors: 1 2 3 5 6 7 9 10 11 14 15 18 21 22 30 33 35 42 45 55 63 66 70 77 90 99 105 110 121 126 154 165 198 210 231 242 315 330 363 385 401 462 495 605 630 693 726 770 802 847 990 1089 1155 1203 1210 1386 1694 1815 2005 2178 2310 2406 2541 2807 3465 3609 3630 4010 4235 4411 5082 5445 5614 6015 6930 7218 7623 8421 8470 8822 10890 12030 12705 13233 14035 15246 16842 18045 22055 25263 25410 26466 28070 30877 36090 38115 39699 42105 44110 48521 50526 61754 66165 76230 79398 84210 92631 97042 126315 132330 145563 154385 185262 198495 242605 252630 277893 291126 308770 339647 396990 436689 463155 485210 555786 679294 727815 873378 926310 1018941 1389465 1455630 1698235 2037882 2183445 2778930 3056823 3396470 4366890 5094705 6113646 10189410 15284115 30568230