221721005129728

Names of 221721005129728

• Cardinal: 221721005129728 can be written as Two hundred twenty-one trillion, seven hundred twenty-one billion, five million, one hundred twenty-nine thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 2.21721005129728 × 10¹⁴

Factors of 221721005129728

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 27
• Sum of prime factors: 115

Divisors of 221721005129728

• Number of divisors d(n): 368
• Complete list of divisors:
  1 2 4 8 13 16 26 32 41 52 59 64 82 104 118 128 164 208 236 256 328 416 472 512 533 656 767 832 944 1024 1066 1312 1534 1664 1681 1888 2048 2132 2419 2624 3068 3328 3362 3776 4096 4264 4838 5248 6136 6656 6724 7552 8192 8528 9676 10496 12272 13312 13448 15104 16384 17056 19352 20992 21853 24544 26624 26896 30208 31447 32768 34112 38704 41984 43706 49088 53248 53792 60416 62894 65536 68224 68921 77408 83968 87412 98176 99179 106496 107584 120832 125788 131072 136448 137842 154816 167936 174824 196352 198358 212992 215168 241664 251576 262144 272896 275684 309632 335872 349648 392704 396716 425984 430336 483328 503152 524288 545792 551368 619264 671744 699296 785408 793432 851968 860672 895973 966656 1006304 1048576 1091584 1102736 1238528 1289327 1343488 1398592 1570816 1586864 1703936 1721344 1791946 1933312 2012608 2097152 2183168 2205472 2477056 2578654 2686976 2797184 3141632 3173728 3407872 3442688 3583892 3866624 4025216 4066339 4194304 4366336 4410944 4954112 5157308 5373952 5594368 6283264 6347456 6815744 6885376 7167784 7733248 8050432 8132678 8732672 8821888 9908224 10314616 10747904 11188736 12566528 12694912 13631488 13770752 14335568 15466496 16100864 16265356 17465344 17643776 19816448 20629232 21495808 22377472 25133056 25389824 27262976 27541504 28671136 30932992 32201728 32530712 34930688 35287552 39632896 41258464 42991616 44754944 50266112 50779648 52862407 54525952 55083008 57342272 61865984 64403456 65061424 69861376 70575104 79265792 82516928 85983232 89509888 100532224 101559296 105724814 110166016 114684544 123731968 128806912 130122848 139722752 141150208 158531584 165033856 171966464 179019776 201064448 203118592 211449628 220332032 229369088 247463936 257613824 260245696 279445504 282300416 317063168 330067712 358039552 402128896 406237184 422899256 440664064 458738176 515227648 520491392 558891008 564600832 634126336 660135424 716079104 804257792 812474368 845798512 881328128 917476352 1030455296 1040982784 1117782016 1129201664 1268252672 1320270848 1432158208 1608515584 1624948736 1691597024 1762656256 1834952704 2060910592 2081965568 2235564032 2258403328 2536505344 2640541696 2864316416 3217031168 3249897472 3383194048 3525312512 3669905408 4121821184 4163931136 4516806656 5073010688 5281083392 5728632832 6499794944 6766388096 7050625024 7339810816 8243642368 8327862272 9033613312 10146021376 10562166784 11457265664 12999589888 13532776192 14679621632 16487284736 16655724544 18067226624 21124333568 22914531328 25999179776 27065552384 29359243264 32974569472 33311449088 36134453248 42248667136 45829062656 51998359552 54131104768 58718486528 65949138944 66622898176 72268906496 84497334272 91658125312 103996719104 108262209536 117436973056 131898277888 133245796352 144537812992 168994668544 207993438208 216524419072 234873946112 266491592704 289075625984 337989337088 415986876416 433048838144 469747892224 532983185408 675978674176 866097676288 939495784448 1065966370816 1351957348352 1732195352576 1878991568896 2131932741632 2703914696704 3464390705152 3757983137792 4263865483264 5407829393408 6928781410304 8527730966528 13857562820608 17055461933056 27715125641216 55430251282432 110860502564864 221721005129728
• Sum of all divisors σ(n): 497787992442720
• Sum of proper divisors (its aliquot sum) s(n): 276066987312992
• 221721005129728 is an abundant number, because the sum of its proper divisors (276066987312992) is greater than itself. Its abundance is 54345982183264

Bases of 221721005129728

• Binary: 110010011010011101110001110000000000000000000000₂
• Hexadecimal: 0xC9A771C00000
• Base-36: 26LD81SCN4

Squares and roots of 221721005129728

• 221721005129728 squared (221721005129728²) is 49160204115736870090109353984
• 221721005129728 cubed (221721005129728³) is 10899849868923770111459799208282940193636352
• The square root of 221721005129728 is 14890299.0275456859
• The cube root of 221721005129728 is 60525.1135526771

Scales and comparisons

• 221,721,005,129,728 seconds is equal to 7,050,042 years, 7 weeks, 3 hours, 35 minutes, 28 seconds.
• To count from 1 to 221,721,005,129,728 would take you about seventeen million, six hundred twenty-five thousand, one hundred five 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 221721005129728 cubic inches would be around 5043.8 feet tall.

Recreational maths with 221721005129728

• 221721005129728 backwards is 827921500127122
• The number of decimal digits it has is: 15
• The sum of 221721005129728's digits is 49
• More coming soon!