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30144300 = 22352891129
BaseRepresentation
bin111001011111…
…1011100101100
32002201111012120
41302333130230
530204104200
62554032540
7514136154
oct162773454
962644176
1030144300
111601994a
12a118750
136325884
144009764
1529a69a0
hex1cbf72c

30144300 has 72 divisors (see below), whose sum is σ = 88275600. Its totient is φ = 7941120.

The previous prime is 30144293. The next prime is 30144319. The reversal of 30144300 is 344103.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 30144300.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26136 + ... + 27264.

It is an arithmetic number, because the mean of its divisors is an integer number (1226050).

Almost surely, 230144300 is an apocalyptic number.

30144300 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30144300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44137800).

30144300 is an abundant number, since it is smaller than the sum of its proper divisors (58131300).

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

30144300 is a wasteful number, since it uses less digits than its factorization.

30144300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235 (or 1228 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 30144300 is about 5490.3825003364. The cubic root of 30144300 is about 311.2206468988.

Adding to 30144300 its reverse (344103), we get a palindrome (30488403).

The spelling of 30144300 in words is "thirty million, one hundred forty-four thousand, three hundred".

Divisors: 1 2 3 4 5 6 10 12 15 20 25 30 50 60 75 89 100 150 178 267 300 356 445 534 890 1068 1129 1335 1780 2225 2258 2670 3387 4450 4516 5340 5645 6675 6774 8900 11290 13350 13548 16935 22580 26700 28225 33870 56450 67740 84675 100481 112900 169350 200962 301443 338700 401924 502405 602886 1004810 1205772 1507215 2009620 2512025 3014430 5024050 6028860 7536075 10048100 15072150 30144300