28215409438720

Names of 28215409438720

• Cardinal: 28215409438720 can be written as Twenty-eight trillion, two hundred fifteen billion, four hundred nine million, four hundred thirty-eight thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 2.821540943872 × 10¹³

Factors of 28215409438720

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 2084

Divisors of 28215409438720

• Number of divisors d(n): 312
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 64 70 80 112 128 140 160 224 256 280 320 337 448 512 560 640 674 896 1024 1120 1280 1348 1685 1733 1792 2048 2240 2359 2560 2696 3370 3466 3584 4096 4480 4718 5120 5392 6740 6932 7168 8665 8960 9436 10240 10784 11795 12131 13480 13864 14336 17330 17920 18872 20480 21568 23590 24262 26960 27728 28672 34660 35840 37744 43136 47180 48524 53920 55456 60655 69320 71680 75488 86272 94360 97048 107840 110912 113569 121310 138640 143360 150976 172544 188720 194096 215680 221824 227138 242620 277280 301952 345088 377440 388192 431360 443648 454276 485240 554560 567845 584021 603904 690176 754880 776384 794983 862720 887296 908552 970480 1109120 1135690 1168042 1207808 1380352 1509760 1552768 1589966 1725440 1774592 1817104 1940960 2218240 2271380 2336084 2415616 2920105 3019520 3105536 3179932 3450880 3549184 3634208 3881920 3974915 4088147 4436480 4542760 4672168 4831232 5840210 6039040 6211072 6359864 6901760 7098368 7268416 7763840 7949830 8176294 8872960 9085520 9344336 9662464 11680420 12078080 12422144 12719728 14536832 15527680 15899660 16352588 17745920 18171040 18688672 20440735 23360840 24156160 24844288 25439456 29073664 31055360 31799320 32705176 35491840 36342080 37377344 40881470 46721680 48312320 49688576 50878912 58147328 62110720 63598640 65410352 72684160 74754688 81762940 93443360 101757824 116294656 124221440 127197280 130820704 145368320 149509376 163525880 186886720 196815077 203515648 232589312 248442880 254394560 261641408 290736640 299018752 327051760 373773440 393630154 407031296 465178624 508789120 523282816 581473280 598037504 654103520 747546880 787260308 814062592 984075385 1017578240 1046565632 1162946560 1196075008 1308207040 1377705539 1495093760 1574520616 1628125184 1968150770 2035156480 2093131264 2325893120 2392150016 2616414080 2755411078 2990187520 3149041232 3256250368 3936301540 4070312960 4186262528 5232828160 5510822156 5980375040 6298082464 6888527695 7872603080 8140625920 8372525056 10465656320 11021644312 11960750080 12596164928 13777055390 15745206160 16281251840 16745050112 20931312640 22043288624 25192329856 27554110780 31490412320 41862625280 44086577248 50384659712 55108221560 62980824640 83725250560 88173154496 100769319424 110216443120 125961649280 176346308992 201538638848 220432886240 251923298560 352692617984 403077277696 440865772480 503846597120 705385235968 806154555392 881731544960 1007693194240 1410770471936 1763463089920 2015386388480 2821540943872 3526926179840 4030772776960 5643081887744 7053852359680 14107704719360 28215409438720
• Sum of all divisors σ(n): 77656474509984
• Sum of proper divisors (its aliquot sum) s(n): 49441065071264
• 28215409438720 is an abundant number, because the sum of its proper divisors (49441065071264) is greater than itself. Its abundance is 21225655632544

Bases of 28215409438720

• Binary: 110011010100101101001011101001111000000000000₂
• Hexadecimal: 0x19A96974F000
• Base-36: A01ZAA29S

Squares and roots of 28215409438720

• 28215409438720 squared (28215409438720²) is 796109329794609665435238400
• 28215409438720 cubed (28215409438720³) is 22462550698139882873099566888253390848000
• The square root of 28215409438720 is 5311817.9033848667
• The cube root of 28215409438720 is 30443.5611069051

Scales and comparisons

• 28,215,409,438,720 seconds is equal to 897,162 years, 38 weeks, 4 days, 20 hours, 58 minutes, 40 seconds.
• To count from 1 to 28,215,409,438,720 would take you about two million, two hundred forty-two thousand, nine hundred six 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 28215409438720 cubic inches would be around 2537 feet tall.

Recreational maths with 28215409438720

• 28215409438720 backwards is 02783490451282
• The number of decimal digits it has is: 14
• The sum of 28215409438720's digits is 55
• More coming soon!