18131796864
18,131,796,864 is an even composite number composed of five prime numbers multiplied together.
18131796864 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of three hundred eighty-four divisors.
Prime factorization of 18131796864:
27 × 35 × 47 × 79 × 157
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 3 × 47 × 79 × 157)See below for interesting mathematical facts about the number 18131796864 from the Numbermatics database.
Names of 18131796864
- Cardinal: 18131796864 can be written as Eighteen billion, one hundred thirty-one million, seven hundred ninety-six thousand, eight hundred sixty-four.
Scientific notation
- Scientific notation: 1.8131796864 × 1010
Factors of 18131796864
Divisors of 18131796864
- Number of divisors d(n): 384
-
Complete list of divisors:
1 2 3 4 6 8 9 12 16 18 24 27 32 36 47 48 54 64 72 79 81 94 96 108 128 141 144 157 158 162 188 192 216 237 243 282 288 314 316 324 376 384 423 432 471 474 486 564 576 628 632 648 711 752 846 864 942 948 972 1128 1152 1256 1264 1269 1296 1413 1422 1504 1692 1728 1884 1896 1944 2133 2256 2512 2528 2538 2592 2826 2844 3008 3384 3456 3713 3768 3792 3807 3888 4239 4266 4512 5024 5056 5076 5184 5652 5688 6016 6399 6768 7379 7426 7536 7584 7614 7776 8478 8532 9024 10048 10112 10152 10368 11139 11304 11376 11421 12403 12717 12798 13536 14758 14852 15072 15168 15228 15552 16956 17064 18048 19197 20096 20304 22137 22278 22608 22752 22842 24806 25434 25596 27072 29516 29704 30144 30336 30456 31104 33417 33912 34128 37209 38151 38394 40608 44274 44556 45216 45504 45684 49612 50868 51192 54144 59032 59408 60288 60912 66411 66834 67824 68256 74418 76302 76788 81216 88548 89112 90432 91008 91368 99224 100251 101736 102384 111627 118064 118816 121824 132822 133668 135648 136512 148836 152604 153576 162432 177096 178224 180864 182736 198448 199233 200502 203472 204768 223254 236128 237632 243648 265644 267336 271296 273024 297672 300753 305208 307152 334881 354192 356448 365472 396896 398466 401004 406944 409536 446508 472256 475264 487296 531288 534672 542592 582941 595344 597699 601506 610416 614304 669762 708384 712896 730944 793792 796932 802008 813888 819072 893016 902259 944512 1004643 1062576 1069344 1165882 1190688 1195398 1203012 1220832 1228608 1339524 1416768 1425792 1461888 1587584 1593864 1604016 1627776 1748823 1786032 1793097 1804518 2009286 2125152 2138688 2331764 2381376 2390796 2406024 2441664 2457216 2679048 2833536 3013929 3187728 3208032 3497646 3572064 3586194 3609036 4018572 4250304 4277376 4663528 4762752 4781592 4812048 4883328 5246469 5358096 6027858 6375456 6416064 6995292 7144128 7172388 7218072 8037144 8500608 9327056 9563184 9624096 10492938 10716192 12055716 12750912 12832128 13990584 14288256 14344776 14436144 15739407 16074288 18654112 19126368 19248192 20985876 21432384 24111432 25501824 27981168 28689552 28872288 31478814 32148576 37308224 38252736 38496384 41971752 42864768 47218221 48222864 55962336 57379104 57744576 62957628 64297152 74616448 76505472 83943504 94436442 96445728 111924672 114758208 115489152 125915256 128594304 141654663 167887008 188872884 192891456 223849344 229516416 251830512 283309326 335774016 377745768 385782912 503661024 566618652 671548032 755491536 1007322048 1133237304 1510983072 2014644096 2266474608 3021966144 4532949216 6043932288 9065898432 18131796864
- Sum of all divisors σ(n): 56315750400
- Sum of proper divisors (its aliquot sum) s(n): 38183953536
- 18131796864 is an abundant number, because the sum of its proper divisors (38183953536) is greater than itself. Its abundance is 20052156672
Bases of 18131796864
- Binary: 100001110001011110101000011100000002
- Hexadecimal: 0x438BD4380
- Base-36: 8BV7C00
Squares and roots of 18131796864
- 18131796864 squared (181317968642) is 328762057517360234496
- 18131796864 cubed (181317968643) is 5961046843495459925392877420544
-
The
square root of 18131796864 is 134654.3607314669 -
The
cube root of 18131796864 is 2627.1222439223
Scales and comparisons
How big is 18131796864?- 18,131,796,864 seconds is equal to 576 years, 27 weeks, 5 days, 18 hours, 14 minutes, 24 seconds.
-
To count from 1 to 18,131,796,864 would take you about one thousand, one hundred fifty-three 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 18131796864 cubic inches would be around 218.9 feet tall.
Recreational maths with 18131796864
- 18131796864 backwards is 46869713181
- 18131796864 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 18131796864's digits is 54
- More coming soon!
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