1990781428608

Names of 1990781428608

• Cardinal: 1990781428608 can be written as One trillion, nine hundred ninety billion, seven hundred eighty-one million, four hundred twenty-eight thousand, six hundred eight.

Scientific notation

• Scientific notation: 1.990781428608 × 10¹²

Factors of 1990781428608

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 1252

Divisors of 1990781428608

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 32 36 42 48 54 56 59 63 64 72 84 96 108 112 118 126 128 144 168 177 189 192 216 224 236 252 288 336 354 378 384 413 432 448 472 504 531 576 672 708 756 826 864 896 944 1008 1062 1152 1181 1239 1344 1416 1512 1593 1652 1728 1888 2016 2124 2362 2478 2688 2832 3024 3186 3304 3456 3543 3717 3776 4032 4248 4724 4956 5664 6048 6372 6608 7086 7434 7552 8064 8267 8496 9448 9912 10629 11151 11328 12096 12744 13216 14172 14868 16534 16992 18896 19824 21258 22302 22656 24192 24801 25488 26432 28344 29736 31887 33068 33984 37792 39648 42516 44604 49602 50976 52864 56688 59472 63774 66136 67968 69679 74403 75584 79296 85032 89208 99204 101952 113376 118944 127548 132272 139358 148806 151168 158592 170064 178416 198408 203904 209037 223209 226752 237888 255096 264544 278716 297612 340128 356832 396816 418074 446418 453504 475776 487753 510192 529088 557432 595224 627111 680256 713664 793632 836148 892836 975506 1020384 1058176 1114864 1190448 1254222 1360512 1394761 1427328 1463259 1587264 1672296 1785672 1881333 1951012 2040768 2229728 2380896 2508444 2789522 2926518 3174528 3344592 3571344 3762666 3902024 4081536 4184283 4389777 4459456 4761792 5016888 5579044 5853036 6689184 7142688 7525332 7804048 8368566 8779554 8918912 9523584 9763327 10033776 11158088 11706072 12552849 13169331 13378368 14285376 15050664 15608096 16737132 17559108 19526654 20067552 22316176 23412144 25105698 26338662 26756736 28570752 29289981 30101328 31216192 33474264 35118216 37658547 39053308 40135104 44632352 46824288 50211396 52677324 58579962 60202656 62432384 66948528 70236432 75317094 78106616 80270208 82290899 87869943 89264704 93648576 100422792 105354648 117159924 120405312 133897056 140472864 150634188 156213232 164581798 175739886 178529408 187297152 200845584 210709296 234319848 240810624 246872697 263609829 267794112 280945728 301268376 312426464 329163596 351479772 401691168 421418592 468639696 493745394 527219658 535588224 561891456 576036293 602536752 624852928 658327192 702959544 740618091 803382336 842837184 937279392 987490788 1054439316 1152072586 1205073504 1249705856 1316654384 1405919088 1481236182 1606764672 1685674368 1728108879 1874558784 1974981576 2108878632 2221854273 2304145172 2410147008 2633308768 2811838176 2962472364 3456217758 3749117568 3949963152 4217757264 4443708546 4608290344 4820294016 5184326637 5266617536 5623676352 5924944728 6912435516 7899926304 8435514528 8887417092 9216580688 10368653274 10533235072 11247352704 11849889456 13824871032 15552979911 15799852608 16871029056 17774834184 18433161376 20737306548 23699778912 27649742064 31105959822 31599705216 33742058112 35549668368 36866322752 41474613096 47399557824 55299484128 62211919644 71099336736 73732645504 82949226192 94799115648 110598968256 124423839288 142198673472 165898452384 221197936512 248847678576 284397346944 331796904768 497695357152 663593809536 995390714304 1990781428608
• Sum of all divisors σ(n): 6834536928000
• Sum of proper divisors (its aliquot sum) s(n): 4843755499392
• 1990781428608 is an abundant number, because the sum of its proper divisors (4843755499392) is greater than itself. Its abundance is 2852974070784

Bases of 1990781428608

• Binary: 11100111110000011110100011110001110000000₂
• Hexadecimal: 0x1CF83D1E380
• Base-36: PEJVV1C0

Squares and roots of 1990781428608

• 1990781428608 squared (1990781428608²) is 3963210696490509400817664
• 1990781428608 cubed (1990781428608³) is 7889886252233882996873443221241331712
• The square root of 1990781428608 is 1410950.5408085713
• The cube root of 1990781428608 is 12579.8228937857

Scales and comparisons

• 1,990,781,428,608 seconds is equal to 63,300 years, 35 weeks, 6 days, 17 hours, 16 minutes, 48 seconds.
• To count from 1 to 1,990,781,428,608 would take you about one hundred fifty-eight thousand, two hundred fifty-one 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 1990781428608 cubic inches would be around 1048.3 feet tall.

Recreational maths with 1990781428608

• 1990781428608 backwards is 8068241870991
• 1990781428608 is a Harshad number.
• The number of decimal digits it has is: 13
• The sum of 1990781428608's digits is 63
• More coming soon!