1997664151728

Names of 1997664151728

• Cardinal: 1997664151728 can be written as One trillion, nine hundred ninety-seven billion, six hundred sixty-four million, one hundred fifty-one thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 1.997664151728 × 10¹²

Factors of 1997664151728

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 1651

Divisors of 1997664151728

• Number of divisors d(n): 640
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 17 19 21 24 28 31 34 38 42 48 51 56 57 62 68 76 84 93 102 112 114 119 124 133 136 152 168 186 204 217 228 238 248 266 272 304 323 336 357 372 399 408 434 456 476 496 527 532 589 631 646 651 714 744 798 816 868 912 941 952 969 1054 1064 1178 1262 1292 1302 1428 1488 1581 1596 1736 1767 1882 1893 1904 1938 2108 2128 2261 2356 2524 2584 2604 2823 2856 3162 3192 3472 3534 3689 3764 3786 3876 4123 4216 4417 4522 4712 5048 5168 5208 5646 5712 6324 6384 6587 6783 7068 7378 7528 7572 7752 8246 8432 8834 9044 9424 10013 10096 10416 10727 11067 11292 11989 12369 12648 13174 13251 13566 14136 14756 15056 15144 15504 15997 16492 17668 17879 18088 19561 19761 20026 21454 22134 22584 23978 24738 25296 26348 26502 27132 28272 29171 29512 30039 30288 31994 32181 32984 35336 35758 35967 36176 39122 39522 40052 42908 44268 45168 47956 47991 49476 52696 53004 53637 54264 58342 58683 59024 60078 63988 64362 65968 70091 70672 71516 71934 75089 78244 79044 80104 83923 85816 87513 88536 95912 95982 98952 105392 106008 107274 108528 111979 116684 117366 120156 125153 127976 128724 136927 140182 143032 143868 150178 156488 158088 160208 167846 171632 175026 177072 191824 191964 197904 203813 204197 210273 212016 214548 223958 225267 233368 234732 240312 250306 251769 255952 257448 273854 280364 286064 287736 300356 303943 312976 316176 332537 335692 335937 350052 371659 375459 383928 407626 408394 410781 420546 429096 447916 450534 466736 469464 480624 495907 500612 503538 514896 547708 554249 560728 575472 593771 600712 607886 611439 612591 665074 671384 671874 700104 743318 750918 767856 815252 816788 821562 841092 858192 895832 901068 911829 938928 991814 997611 1001224 1007076 1095416 1108498 1114977 1121456 1187542 1201424 1215772 1222878 1225182 1330148 1342768 1343748 1400208 1426691 1486636 1487721 1501836 1630504 1633576 1643124 1662747 1682184 1781313 1791664 1802136 1823658 1983628 1995222 2002448 2014152 2127601 2190832 2216996 2229954 2327759 2375084 2431544 2445756 2450364 2601613 2660296 2687496 2853382 2973272 2975442 3003672 3261008 3267152 3286248 3325494 3364368 3471349 3562626 3604272 3647316 3879743 3967256 3990444 4028304 4156397 4255202 4280073 4433992 4459908 4655518 4750168 4863088 4891512 4900728 5203226 5320592 5374992 5706764 5946544 5950884 6007344 6318203 6382803 6572496 6650988 6942698 6983277 7125252 7294632 7759486 7804839 7934512 7980888 8312794 8510404 8560146 8867984 8919816 9311036 9422233 9500336 9783024 9801456 10094107 10406452 10414047 11281649 11413528 11639229 11901768 12469191 12636406 12765606 13301976 13885396 13966554 14250504 14589264 15518972 15609678 15961776 16625588 17020808 17120292 17839632 18406901 18622072 18844466 18954609 20188214 20812904 20828094 22563298 22827056 23278458 23803536 24938382 25272812 25531212 26603952 27770792 27933108 28266699 28501008 30282321 31037944 31219356 33251176 33844947 34041616 34240584 36813802 37244144 37688932 37909218 40376428 41625808 41656188 44227421 45126596 46556916 49876764 50545624 51062424 55220703 55541584 55866216 56533398 60564642 62075888 62438712 65955631 66502352 67689894 68481168 70658749 73627604 75377864 75818436 78971543 80752856 83312376 88454842 90253192 93113832 99753528 101091248 102124848 110441406 111732432 113066796 121129284 124877424 128848307 131911262 132682263 135379788 141317498 147255208 150755728 151636872 157943086 161505712 166624752 176909684 180506384 186227664 191788033 197866893 199507056 211976247 220882812 226133592 236914629 242258568 257696614 263822524 265364526 270759576 282634996 294510416 303273744 312917317 315886172 349731119 353819368 383576066 386544921 395733786 423952494 441765624 452267184 473829258 484517136 515393228 527645048 530729052 541519152 565269992 575364099 625834634 631772344 699462238 707638736 767152132 773089842 791467572 847904988 883531248 938751951 947658516 1030786456 1049193357 1055290096 1061458104 1130539984 1150728198 1251669268 1263544688 1342516231 1398924476 1534304264 1546179684 1582935144 1695809976 1877503902 1895317032 2061572912 2098386714 2122916208 2190421219 2301456396 2448117833 2503338536 2685032462 2797848952 3068608528 3092359368 3165870288 3391619952 3755007804 3790634064 4027548693 4196773428 4380842438 4602912792 4896235666 5006677072 5370064924 5595697904 5945429023 6184718736 6571263657 7344353499 7510015608 8055097386 8393546856 8761684876 9205825584 9792471332 10740129848 11890858046 13142527314 14688706998 15020031216 16110194772 16787093712 17523369752 17836287069 19584942664 21480259696 23781716092 26285054628 29377413996 32220389544 35046739504 35672574138 39169885328 41618003161 47563432184 52570109256 58754827992 64440779088 71345148276 83236006322 95126864368 105140218512 117509655984 124854009483 142690296552 166472012644 249708018966 285380593104 332944025288 499416037932 665888050576 998832075864 1997664151728
• Sum of all divisors σ(n): 6803495976960
• Sum of proper divisors (its aliquot sum) s(n): 4805831825232
• 1997664151728 is an abundant number, because the sum of its proper divisors (4805831825232) is greater than itself. Its abundance is 2808167673504

Bases of 1997664151728

• Binary: 11101000100011110000011111110100010110000₂
• Hexadecimal: 0x1D11E0FE8B0
• Base-36: PHPPNOHC

Squares and roots of 1997664151728

• 1997664151728 squared (1997664151728²) is 3990662063099149805385984
• 1997664151728 cubed (1997664151728³) is 7972002545114073506734388012980580352
• The square root of 1997664151728 is 1413387.4740240203
• The cube root of 1997664151728 is 12594.3036141509

Scales and comparisons

• 1,997,664,151,728 seconds is equal to 63,519 years, 28 weeks, 20 hours, 48 minutes, 48 seconds.
• To count from 1 to 1,997,664,151,728 would take you about one hundred fifty-eight thousand, seven hundred ninety-eight 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 1997664151728 cubic inches would be around 1049.5 feet tall.

Recreational maths with 1997664151728

• 1997664151728 backwards is 8271514667991
• The number of decimal digits it has is: 13
• The sum of 1997664151728's digits is 66
• More coming soon!