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18282000 = 2435311277
BaseRepresentation
bin100010110111…
…1011000010000
31021101211012010
41011233120100
514140011000
61451502520
7311252202
oct105573020
937354163
1018282000
11a3575a0
126157a40
133a31469
1425dc772
151911d50
hex116f610

18282000 has 160 divisors (see below), whose sum is σ = 64531584. Its totient is φ = 4416000.

The previous prime is 18281983. The next prime is 18282007. The reversal of 18282000 is 28281.

It is not an unprimeable number, because it can be changed into a prime (18282007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65862 + ... + 66138.

Almost surely, 218282000 is an apocalyptic number.

18282000 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 18282000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32265792).

18282000 is an abundant number, since it is smaller than the sum of its proper divisors (46249584).

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

18282000 is a wasteful number, since it uses less digits than its factorization.

18282000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314 (or 298 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

The square root of 18282000 is about 4275.7455490242. The cubic root of 18282000 is about 263.4356631979.

It can be divided in two parts, 1828 and 2000, that added together give a triangular number (3828 = T87).

The spelling of 18282000 in words is "eighteen million, two hundred eighty-two thousand".

Divisors: 1 2 3 4 5 6 8 10 11 12 15 16 20 22 24 25 30 33 40 44 48 50 55 60 66 75 80 88 100 110 120 125 132 150 165 176 200 220 240 250 264 275 277 300 330 375 400 440 500 528 550 554 600 660 750 825 831 880 1000 1100 1108 1200 1320 1375 1385 1500 1650 1662 2000 2200 2216 2640 2750 2770 3000 3047 3300 3324 4125 4155 4400 4432 5500 5540 6000 6094 6600 6648 6925 8250 8310 9141 11000 11080 12188 13200 13296 13850 15235 16500 16620 18282 20775 22000 22160 24376 27700 30470 33000 33240 34625 36564 41550 45705 48752 55400 60940 66000 66480 69250 73128 76175 83100 91410 103875 110800 121880 138500 146256 152350 166200 182820 207750 228525 243760 277000 304700 332400 365640 380875 415500 457050 554000 609400 731280 761750 831000 914100 1142625 1218800 1523500 1662000 1828200 2285250 3047000 3656400 4570500 6094000 9141000 18282000