6445505664

Names of 6445505664

• Cardinal: 6445505664 can be written as Six billion, four hundred forty-five million, five hundred five thousand, six hundred sixty-four.

Scientific notation

• Scientific notation: 6.445505664 × 10⁹

Factors of 6445505664

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 161

Divisors of 6445505664

• Number of divisors d(n): 640
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 17 18 24 26 27 29 32 34 36 39 48 51 52 54 58 64 68 72 78 81 87 96 97 102 104 108 116 117 128 136 144 153 156 162 174 192 194 204 208 216 221 232 234 261 272 288 291 306 312 324 348 351 377 384 388 408 416 432 442 459 464 468 493 522 544 576 582 612 624 648 663 696 702 754 776 783 816 832 864 873 884 918 928 936 986 1044 1053 1088 1131 1152 1164 1224 1248 1261 1296 1326 1377 1392 1404 1479 1508 1552 1566 1632 1649 1664 1728 1746 1768 1836 1856 1872 1972 1989 2088 2106 2176 2262 2328 2349 2448 2496 2522 2592 2619 2652 2754 2784 2808 2813 2958 3016 3104 3132 3264 3298 3393 3456 3492 3536 3672 3712 3744 3783 3944 3978 4176 4212 4437 4524 4656 4698 4896 4947 4992 5044 5184 5238 5304 5508 5568 5616 5626 5916 5967 6032 6208 6264 6409 6528 6596 6786 6984 7072 7344 7488 7566 7857 7888 7956 8352 8424 8439 8874 9048 9312 9396 9792 9894 10088 10179 10368 10476 10608 11016 11136 11232 11252 11349 11832 11934 12064 12416 12528 12818 13192 13311 13572 13968 14144 14688 14841 14976 15132 15714 15776 15912 16704 16848 16878 17748 17901 18096 18624 18792 19227 19584 19788 20176 20358 20952 21216 21437 22032 22464 22504 22698 23664 23868 24128 25056 25317 25636 26384 26622 27144 27936 28288 29376 29682 30264 30537 31428 31552 31824 33408 33696 33756 34047 35496 35802 36192 36569 37248 37584 38454 39576 39933 40352 40716 41904 42432 42874 44064 44523 44928 45008 45396 47328 47736 47821 48256 50112 50634 51272 52768 53244 54288 55872 57681 58752 59364 60528 61074 62856 63104 63648 64311 67392 67512 68094 70992 71604 72384 73138 75168 75951 76908 79152 79866 80704 81432 83808 84864 85748 88128 89046 90016 90792 94656 95472 95642 100224 101268 102141 102544 105536 106488 108576 109707 111744 115362 118728 121056 122148 125712 127296 128622 133569 134784 135024 136188 141984 143208 143463 144768 146276 150336 151902 153816 158304 159732 161408 162864 167616 171496 173043 176256 178092 180032 181584 189312 190944 191284 192933 202536 204282 205088 211072 212976 217152 219414 227853 230724 237456 242112 244296 251424 254592 257244 267138 270048 272376 283968 286416 286926 292552 300672 303804 307632 316608 319464 325728 329121 335232 342992 346086 356184 360064 363168 381888 382568 385866 405072 408564 410176 425952 430389 434304 438828 455706 461448 474912 484224 488592 502848 514488 519129 534276 540096 544752 567936 572832 573852 578799 585104 607608 615264 621673 633216 638928 651456 658242 685984 692172 712368 726336 763776 765136 771732 810144 817128 820352 851904 860778 877656 911412 922896 949824 977184 987363 1005696 1028976 1038258 1068552 1080192 1089504 1145664 1147704 1157598 1170208 1215216 1230528 1243346 1277856 1291167 1302912 1316484 1371968 1384344 1424736 1452672 1530272 1543464 1620288 1634256 1703808 1721556 1736397 1755312 1822824 1845792 1865019 1899648 1954368 1974726 2057952 2076516 2137104 2179008 2291328 2295408 2315196 2340416 2430432 2461056 2486692 2555712 2582334 2632968 2743936 2768688 2849472 2962089 3060544 3086928 3240576 3268512 3443112 3472794 3510624 3645648 3691584 3730038 3873501 3908736 3949452 4115904 4153032 4274208 4358016 4590816 4630392 4680832 4860864 4973384 5111424 5164668 5265936 5537376 5595057 5698944 5924178 6121088 6173856 6537024 6886224 6945588 7021248 7291296 7383168 7460076 7747002 7898904 8231808 8306064 8548416 9181632 9260784 9721728 9946768 10329336 10531872 11074752 11190114 11848356 12347712 13074048 13772448 13891176 14042496 14582592 14920152 15494004 15797808 16612128 16785171 17096832 18363264 18521568 19893536 20658672 21063744 22149504 22380228 23696712 24695424 27544896 27782352 29165184 29840304 30988008 31595616 33224256 33570342 37043136 39787072 41317344 42127488 44760456 47393424 50355513 55089792 55564704 59680608 61976016 63191232 66448512 67140684 74086272 79574144 82634688 89520912 94786848 100711026 111129408 119361216 123952032 126382464 134281368 165269376 179041824 189573696 201422052 222258816 238722432 247904064 268562736 358083648 379147392 402844104 495808128 537125472 716167296 805688208 1074250944 1611376416 2148501888 3222752832 6445505664
• Sum of all divisors σ(n): 22859852400
• Sum of proper divisors (its aliquot sum) s(n): 16414346736
• 6445505664 is an abundant number, because the sum of its proper divisors (16414346736) is greater than itself. Its abundance is 9968841072

Bases of 6445505664

• Binary: 110000000001011101001110010000000₂
• Hexadecimal: 0x1802E9C80
• Base-36: 2YLHK00

Squares and roots of 6445505664

• 6445505664 squared (6445505664²) is 41544543264656080896
• 6445505664 cubed (6445505664³) is 267775588920633820427210194944
• The square root of 6445505664 is 80283.9066314041
• The cube root of 6445505664 is 1861.0255322721

Scales and comparisons

• 6,445,505,664 seconds is equal to 204 years, 49 weeks, 1 day, 18 hours, 14 minutes, 24 seconds.
• To count from 1 to 6,445,505,664 would take you about four hundred nine 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 6445505664 cubic inches would be around 155.1 feet tall.

Recreational maths with 6445505664

• 6445505664 backwards is 4665055446
• The number of decimal digits it has is: 10
• The sum of 6445505664's digits is 45
• More coming soon!