18012872640
18,012,872,640 is an even composite number composed of six prime numbers multiplied together.
18012872640 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of three hundred thirty-six divisors.
Prime factorization of 18012872640:
26 × 3 × 5 × 7 × 732 × 503
(2 × 2 × 2 × 2 × 2 × 2 × 3 × 5 × 7 × 73 × 73 × 503)See below for interesting mathematical facts about the number 18012872640 from the Numbermatics database.
Names of 18012872640
- Cardinal: 18012872640 can be written as Eighteen billion, twelve million, eight hundred seventy-two thousand, six hundred forty.
Scientific notation
- Scientific notation: 1.801287264 × 1010
Factors of 18012872640
Divisors of 18012872640
- Number of divisors d(n): 336
-
Complete list of divisors:
1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 32 35 40 42 48 56 60 64 70 73 80 84 96 105 112 120 140 146 160 168 192 210 219 224 240 280 292 320 336 365 420 438 448 480 503 511 560 584 672 730 840 876 960 1006 1022 1095 1120 1168 1344 1460 1509 1533 1680 1752 2012 2044 2190 2240 2336 2515 2555 2920 3018 3066 3360 3504 3521 4024 4088 4380 4672 5030 5110 5329 5840 6036 6132 6720 7008 7042 7545 7665 8048 8176 8760 10060 10220 10563 10658 11680 12072 12264 14016 14084 15090 15330 15987 16096 16352 17520 17605 20120 20440 21126 21316 23360 24144 24528 26645 28168 30180 30660 31974 32192 32704 35040 35210 36719 37303 40240 40880 42252 42632 48288 49056 52815 53290 56336 60360 61320 63948 70080 70420 73438 74606 79935 80480 81760 84504 85264 96576 98112 105630 106580 110157 111909 112672 120720 122640 127896 140840 146876 149212 159870 160960 163520 169008 170528 183595 186515 211260 213160 220314 223818 225344 241440 245280 255792 257033 281680 293752 298424 319740 338016 341056 367190 373030 422520 426320 440628 447636 482880 490560 511584 514066 550785 559545 563360 587504 596848 639480 676032 734380 746060 771099 845040 852640 881256 895272 1023168 1028132 1101570 1119090 1126720 1175008 1193696 1278960 1285165 1468760 1492120 1542198 1690080 1705280 1762512 1790544 2056264 2203140 2238180 2350016 2387392 2557920 2570330 2680487 2937520 2984240 3084396 3380160 3525024 3581088 3855495 4112528 4406280 4476360 5115840 5140660 5360974 5875040 5968480 6168792 7050048 7162176 7710990 8041461 8225056 8812560 8952720 10281320 10721948 11750080 11936960 12337584 13402435 15421980 16082922 16450112 17625120 17905440 18763409 20562640 21443896 24675168 26804870 30843960 32165844 35250240 35810880 37526818 40207305 41125280 42887792 49350336 53609740 56290227 61687920 64331688 75053636 80414610 82250560 85775584 93817045 107219480 112580454 123375840 128663376 150107272 160829220 171551168 187634090 214438960 225160908 246751680 257326752 281451135 300214544 321658440 375268180 428877920 450321816 514653504 562902270 600429088 643316880 750536360 857755840 900643632 1125804540 1200858176 1286633760 1501072720 1801287264 2251609080 2573267520 3002145440 3602574528 4503218160 6004290880 9006436320 18012872640
- Sum of all divisors σ(n): 66400363008
- Sum of proper divisors (its aliquot sum) s(n): 48387490368
- 18012872640 is an abundant number, because the sum of its proper divisors (48387490368) is greater than itself. Its abundance is 30374617728
Bases of 18012872640
- Binary: 100001100011010011010011111110000002
- Hexadecimal: 0x431A69FC0
- Base-36: 89WEDHC
Squares and roots of 18012872640
- 18012872640 squared (180128726402) is 324463580744860569600
- 18012872640 cubed (180128726403) is 5844521156275529774762655744000
-
The
square root of 18012872640 is 134212.0435728479 -
The
cube root of 18012872640 is 2621.3659834989
Scales and comparisons
How big is 18012872640?- 18,012,872,640 seconds is equal to 572 years, 39 weeks, 1 day, 7 hours, 44 minutes.
-
To count from 1 to 18,012,872,640 would take you about one thousand, one hundred forty-five years!
This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)
- A cube with a volume of 18012872640 cubic inches would be around 218.4 feet tall.
Recreational maths with 18012872640
- 18012872640 backwards is 04627821081
- The number of decimal digits it has is: 11
- The sum of 18012872640's digits is 39
- More coming soon!
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