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18330060 = 22357192297
BaseRepresentation
bin100010111101…
…1000111001100
31021111021010010
41011323013030
514143030220
61452513220
7311542260
oct105730714
937437103
1018330060
11a38a711
12617b810
133a4a2b8
1426120a0
1519211e0
hex117b1cc

18330060 has 96 divisors (see below), whose sum is σ = 61770240. Its totient is φ = 3967488.

The previous prime is 18330031. The next prime is 18330071. The reversal of 18330060 is 6003381.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6832 + ... + 9128.

It is an arithmetic number, because the mean of its divisors is an integer number (643440).

Almost surely, 218330060 is an apocalyptic number.

18330060 is a gapful number since it is divisible by the number (10) 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 18330060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30885120).

18330060 is an abundant number, since it is smaller than the sum of its proper divisors (43440180).

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

18330060 is a wasteful number, since it uses less digits than its factorization.

18330060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2335 (or 2333 counting only the distinct ones).

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

The square root of 18330060 is about 4281.3619328433. The cubic root of 18330060 is about 263.6663024408. Note that the first 3 decimals are identical.

It can be divided in two parts, 18 and 330060, that added together give a triangular number (330078 = T812).

The spelling of 18330060 in words is "eighteen million, three hundred thirty thousand, sixty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 19 20 21 28 30 35 38 42 57 60 70 76 84 95 105 114 133 140 190 210 228 266 285 380 399 420 532 570 665 798 1140 1330 1596 1995 2297 2660 3990 4594 6891 7980 9188 11485 13782 16079 22970 27564 32158 34455 43643 45940 48237 64316 68910 80395 87286 96474 130929 137820 160790 174572 192948 218215 241185 261858 305501 321580 436430 482370 523716 611002 654645 872860 916503 964740 1222004 1309290 1527505 1833006 2618580 3055010 3666012 4582515 6110020 9165030 18330060