21721528664064

Names of 21721528664064

• Cardinal: 21721528664064 can be written as Twenty-one trillion, seven hundred twenty-one billion, five hundred twenty-eight million, six hundred sixty-four thousand and sixty-four.

Scientific notation

• Scientific notation: 2.1721528664064 × 10¹³

Factors of 21721528664064

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 36
• Sum of prime factors: 42

Divisors of 21721528664064

• Number of divisors d(n): 464
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 32 36 37 48 54 64 72 74 81 96 108 111 128 144 148 162 192 216 222 243 256 288 296 324 333 384 432 444 486 512 576 592 648 666 729 768 864 888 972 999 1024 1152 1184 1296 1332 1458 1536 1728 1776 1944 1998 2048 2187 2304 2368 2592 2664 2916 2997 3072 3456 3552 3888 3996 4096 4374 4608 4736 5184 5328 5832 5994 6144 6912 7104 7776 7992 8192 8748 8991 9216 9472 10368 10656 11664 11988 12288 13824 14208 15552 15984 16384 17496 17982 18432 18944 20736 21312 23328 23976 24576 26973 27648 28416 31104 31968 32768 34992 35964 36864 37888 41472 42624 46656 47952 49152 53946 55296 56832 62208 63936 65536 69984 71928 73728 75776 80919 82944 85248 93312 95904 98304 107892 110592 113664 124416 127872 131072 139968 143856 147456 151552 161838 165888 170496 186624 191808 196608 215784 221184 227328 248832 255744 262144 279936 287712 294912 303104 323676 331776 340992 373248 383616 393216 431568 442368 454656 497664 511488 524288 559872 575424 589824 606208 647352 663552 681984 746496 767232 786432 863136 884736 909312 995328 1022976 1048576 1119744 1150848 1179648 1212416 1294704 1327104 1363968 1492992 1534464 1572864 1726272 1769472 1818624 1990656 2045952 2097152 2239488 2301696 2359296 2424832 2589408 2654208 2727936 2985984 3068928 3145728 3452544 3538944 3637248 3981312 4091904 4194304 4478976 4603392 4718592 4849664 5178816 5308416 5455872 5971968 6137856 6291456 6905088 7077888 7274496 7962624 8183808 8388608 8957952 9206784 9437184 9699328 10357632 10616832 10911744 11943936 12275712 12582912 13810176 14155776 14548992 15925248 16367616 16777216 17915904 18413568 18874368 19398656 20715264 21233664 21823488 23887872 24551424 25165824 27620352 28311552 29097984 31850496 32735232 33554432 35831808 36827136 37748736 38797312 41430528 42467328 43646976 47775744 49102848 50331648 55240704 56623104 58195968 63700992 65470464 67108864 71663616 73654272 75497472 77594624 82861056 84934656 87293952 95551488 98205696 100663296 110481408 113246208 116391936 127401984 130940928 134217728 143327232 147308544 150994944 155189248 165722112 169869312 174587904 191102976 196411392 201326592 220962816 226492416 232783872 254803968 261881856 268435456 286654464 294617088 301989888 310378496 331444224 339738624 349175808 382205952 392822784 402653184 441925632 452984832 465567744 509607936 523763712 573308928 589234176 603979776 620756992 662888448 679477248 698351616 764411904 785645568 805306368 883851264 905969664 931135488 1019215872 1047527424 1146617856 1178468352 1207959552 1241513984 1325776896 1358954496 1396703232 1528823808 1571291136 1767702528 1811939328 1862270976 2038431744 2095054848 2293235712 2356936704 2415919104 2483027968 2651553792 2717908992 2793406464 3057647616 3142582272 3535405056 3623878656 3724541952 4076863488 4190109696 4586471424 4713873408 4966055936 5303107584 5435817984 5586812928 6115295232 6285164544 7070810112 7247757312 7449083904 8153726976 8380219392 9172942848 9427746816 9932111872 10606215168 10871635968 11173625856 12230590464 12570329088 14141620224 14898167808 16307453952 16760438784 18345885696 18855493632 21212430336 21743271936 22347251712 24461180928 25140658176 28283240448 29796335616 32614907904 33520877568 36691771392 37710987264 42424860672 44694503424 48922361856 50281316352 56566480896 65229815808 67041755136 73383542784 75421974528 84849721344 89389006848 97844723712 100562632704 113132961792 134083510272 146767085568 150843949056 169699442688 195689447424 201125265408 226265923584 268167020544 293534171136 301687898112 339398885376 402250530816 452531847168 587068342272 603375796224 678797770752 804501061632 905063694336 1206751592448 1357595541504 1810127388672 2413503184896 2715191083008 3620254777344 5430382166016 7240509554688 10860764332032 21721528664064
• Sum of all divisors σ(n): 66915590347040
• Sum of proper divisors (its aliquot sum) s(n): 45194061682976
• 21721528664064 is an abundant number, because the sum of its proper divisors (45194061682976) is greater than itself. Its abundance is 23472533018912

Bases of 21721528664064

• Binary: 100111100000101110000000000000000000000000000₂
• Hexadecimal: 0x13C170000000
• Base-36: 7P6QDC000

Squares and roots of 21721528664064

• 21721528664064 squared (21721528664064²) is 471824807503753980564996096
• 21721528664064 cubed (21721528664064³) is 10248756080609271164126901869068255494144
• The square root of 21721528664064 is 4660636.0793419603
• The cube root of 21721528664064 is 27901.6655455229

Scales and comparisons

• 21,721,528,664,064 seconds is equal to 690,677 years, 21 weeks, 6 days, 18 hours, 14 minutes, 24 seconds.
• To count from 1 to 21,721,528,664,064 would take you about one million, seven hundred twenty-six thousand, six hundred ninety-three 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 21721528664064 cubic inches would be around 2325.1 feet tall.

Recreational maths with 21721528664064

• 21721528664064 backwards is 46046682512712
• 21721528664064 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21721528664064's digits is 54
• More coming soon!