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30168030 = 23517149397
BaseRepresentation
bin111001100010…
…1001111011110
32002202200202110
41303011033132
530210334110
62554334450
7514265304
oct163051736
962680673
1030168030
1116035762
12a12a426
136333609
144014274
1529ada20
hex1cc53de

30168030 has 64 divisors (see below), whose sum is σ = 77371200. Its totient is φ = 7501824.

The previous prime is 30168011. The next prime is 30168037. The reversal of 30168030 is 3086103.

It is a super-2 number, since 2×301680302 = 1820220068161800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30167988 and 30168006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30168037) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75792 + ... + 76188.

It is an arithmetic number, because the mean of its divisors is an integer number (1208925).

Almost surely, 230168030 is an apocalyptic number.

30168030 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 30168030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38685600).

30168030 is an abundant number, since it is smaller than the sum of its proper divisors (47203170).

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

30168030 is a wasteful number, since it uses less digits than its factorization.

30168030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 30168030 is about 5492.5431268220. The cubic root of 30168030 is about 311.3022911773.

The spelling of 30168030 in words is "thirty million, one hundred sixty-eight thousand, thirty".

Divisors: 1 2 3 5 6 10 15 17 30 34 51 85 102 149 170 255 298 397 447 510 745 794 894 1191 1490 1985 2235 2382 2533 3970 4470 5066 5955 6749 7599 11910 12665 13498 15198 20247 25330 33745 37995 40494 59153 67490 75990 101235 118306 177459 202470 295765 354918 591530 887295 1005601 1774590 2011202 3016803 5028005 6033606 10056010 15084015 30168030