640428842680320

Names of 640428842680320

• Cardinal: 640428842680320 can be written as Six hundred forty trillion, four hundred twenty-eight billion, eight hundred forty-two million, six hundred eighty thousand, three hundred twenty.

Scientific notation

• Scientific notation: 6.4042884268032 × 10¹⁴

Factors of 640428842680320

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 23
• Sum of prime factors: 1816

Divisors of 640428842680320

• Number of divisors d(n): 456
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 53 60 64 80 96 106 120 128 159 160 192 212 240 256 265 318 320 384 424 480 512 530 636 640 768 795 848 960 1024 1060 1272 1280 1536 1590 1696 1753 1920 2048 2120 2544 2560 3072 3180 3392 3506 3840 4096 4240 5088 5120 5259 6144 6360 6784 7012 7680 8192 8480 8765 10176 10240 10518 12288 12720 13568 14024 15360 16384 16960 17530 20352 20480 21036 24576 25440 26295 27136 28048 30720 32768 33920 35060 40704 40960 42072 49152 50880 52590 54272 56096 61440 65536 67840 70120 81408 81920 84144 92909 98304 101760 105180 108544 112192 122880 131072 135680 140240 162816 163840 168288 185818 196608 203520 210360 217088 224384 245760 262144 271360 278727 280480 325632 327680 336576 371636 393216 407040 420720 434176 448768 464545 491520 542720 557454 560960 651264 655360 673152 743272 786432 814080 841440 868352 897536 929090 983040 1085440 1114908 1121920 1302528 1310720 1346304 1393635 1486544 1628160 1682880 1736704 1795072 1858180 1966080 2170880 2229816 2243840 2605056 2692608 2787270 2973088 3073009 3256320 3365760 3473408 3590144 3716360 3932160 4341760 4459632 4487680 5210112 5385216 5574540 5946176 6146018 6512640 6731520 6946816 7180288 7432720 8683520 8919264 8975360 9219027 10420224 10770432 11149080 11892352 12292036 13025280 13463040 13893632 14360576 14865440 15365045 17367040 17838528 17950720 18438054 20840448 21540864 22298160 23784704 24584072 26050560 26926080 28721152 29730880 30730090 34734080 35677056 35901440 36876108 41680896 43081728 44596320 46095135 47569408 49168144 52101120 53852160 57442304 59461760 61460180 69468160 71354112 71802880 73752216 86163456 89192640 92190270 95138816 98336288 104202240 107704320 114884608 118923520 122920360 142708224 143605760 147504432 162869477 172326912 178385280 184380540 190277632 196672576 208404480 215408640 229769216 237847040 245840720 285416448 287211520 295008864 325738954 344653824 356770560 368761080 380555264 393345152 430817280 459538432 475694080 488608431 491681440 570832896 574423040 590017728 651477908 689307648 713541120 737522160 761110528 786690304 814347385 861634560 951388160 977216862 983362880 1141665792 1148846080 1180035456 1302955816 1378615296 1427082240 1475044320 1522221056 1573380608 1628694770 1723269120 1902776320 1954433724 1966725760 2283331584 2297692160 2360070912 2443042155 2605911632 2854164480 2950088640 3044442112 3146761216 3257389540 3446538240 3805552640 3908867448 3933451520 4566663168 4720141824 4886084310 5211823264 5708328960 5900177280 6088884224 6293522432 6514779080 6893076480 7611105280 7817734896 7866903040 9133326336 9440283648 9772168620 10423646528 11416657920 11800354560 12177768448 12587044864 13029558160 15222210560 15635469792 15733806080 18266652672 18880567296 19544337240 20847293056 22833315840 23600709120 24355536896 25174089728 26059116320 30444421120 31270939584 31467612160 36533305344 37761134592 39088674480 41694586112 45666631680 47201418240 50348179456 52118232640 60888842240 62541879168 62935224320 73066610688 75522269184 78177348960 83389172224 91333263360 94402836480 100696358912 104236465280 121777684480 125083758336 125870448640 151044538368 156354697920 166778344448 182666526720 188805672960 201392717824 208472930560 250167516672 251740897280 302089076736 312709395840 333556688896 365333053440 377611345920 402785435648 416945861120 500335033344 503481794560 604178153472 625418791680 667113377792 755222691840 805570871296 833891722240 1000670066688 1006963589120 1208356306944 1250837583360 1334226755584 1510445383680 1667783444480 2001340133376 2013927178240 2416712613888 2501675166720 2668453511168 3020890767360 3335566888960 4002680266752 4027854356480 5003350333440 5336907022336 6041781534720 6671133777920 8005360533504 10006700666880 10673814044672 12083563069440 13342267555840 16010721067008 20013401333760 21347628089344 26684535111680 32021442134016 40026802667520 42695256178688 53369070223360 64042884268032 80053605335040 106738140446720 128085768536064 160107210670080 213476280893440 320214421340160 640428842680320
• Sum of all divisors σ(n): 2089227516599376
• Sum of proper divisors (its aliquot sum) s(n): 1448798673919056
• 640428842680320 is an abundant number, because the sum of its proper divisors (1448798673919056) is greater than itself. Its abundance is 808369831238736

Bases of 640428842680320

• Binary: 10010001100111011101110101101011000000000000000000₂
• Hexadecimal: 0x2467775AC0000
• Base-36: 6B0GY5JRPC

Squares and roots of 640428842680320

• 640428842680320 squared (640428842680320²) is 410149102536854064041715302400
• 640428842680320 cubed (640428842680320³) is 262671315064049347995102127658571575328768000
• The square root of 640428842680320 is 25306695.6096666243
• The cube root of 640428842680320 is 86196.6315025795

Scales and comparisons

• 640,428,842,680,320 seconds is equal to 20,363,656 years, 11 weeks, 3 days, 8 hours, 32 minutes.
• To count from 1 to 640,428,842,680,320 would take you about fifty million, nine hundred nine thousand, one hundred forty 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 640428842680320 cubic inches would be around 7183.1 feet tall.

Recreational maths with 640428842680320

• 640428842680320 backwards is 023086248824046
• The number of decimal digits it has is: 15
• The sum of 640428842680320's digits is 57
• More coming soon!