21005454339072

Names of 21005454339072

• Cardinal: 21005454339072 can be written as Twenty-one trillion, five billion, four hundred fifty-four million, three hundred thirty-nine thousand and seventy-two.

Scientific notation

• Scientific notation: 2.1005454339072 × 10¹³

Factors of 21005454339072

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 31140

Divisors of 21005454339072

• Number of divisors d(n): 352
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 32 36 42 48 54 56 63 64 72 84 96 108 112 126 128 144 168 189 192 216 224 252 256 288 336 378 384 432 448 504 512 576 672 756 768 864 896 1008 1024 1152 1344 1512 1536 1728 1792 2016 2304 2688 3024 3072 3456 3584 4001 4032 4608 5376 6048 6912 7168 8002 8064 9216 10752 12003 12096 13824 16004 16128 21504 24006 24192 27127 27648 28007 32008 32256 36009 48012 48384 54254 56014 64016 64512 72018 81381 84021 96024 96768 108027 108508 112028 128032 144036 162762 168042 189889 192048 193536 216054 217016 224056 244143 252063 256064 288072 325524 336084 379778 384096 432108 434032 448112 488286 504126 512128 569667 576144 651048 672168 732429 756189 759556 768192 864216 868064 896224 976572 1008252 1024256 1139334 1152288 1302096 1344336 1464858 1512378 1519112 1536384 1709001 1728432 1736128 1792448 1953144 2016504 2048512 2278668 2304576 2604192 2688672 2929716 3024756 3038224 3072768 3418002 3456864 3472256 3584896 3906288 4033008 4097024 4557336 4609152 5127003 5208384 5377344 5859432 6049512 6076448 6145536 6836004 6913728 6944512 7169792 7812576 8066016 9114672 9218304 10254006 10416768 10754688 11718864 12099024 12152896 12291072 13672008 13827456 13889024 14339584 15625152 16132032 18229344 18436608 20508012 20833536 21509376 23437728 24198048 24305792 27344016 27654912 27778048 28679168 31250304 32264064 36458688 36873216 41016024 41667072 43018752 46875456 48396096 48611584 54688032 55309824 62500608 64528128 72917376 82032048 83334144 86037504 93750912 96792192 97223168 108535127 109376064 110619648 125001216 129056256 145834752 164064096 187501824 193584384 194446336 217070254 218752128 250002432 258112512 291669504 325605381 328128192 375003648 387168768 434140508 437504256 583339008 651210762 656256384 750007296 759745889 774337536 868281016 875008512 976816143 1302421524 1312512768 1519491778 1736562032 1750017024 1953632286 2279237667 2604843048 2625025536 2930448429 3038983556 3473124064 3907264572 4558475334 5209686096 5250051072 5860896858 6077967112 6837713001 6946248128 7814529144 9116950668 10419372192 11721793716 12155934224 13675426002 13892496256 15629058288 18233901336 20513139003 20838744384 23443587432 24311868448 27350852004 27784992512 31258116576 36467802672 41026278006 41677488768 46887174864 48623736896 54701704008 55569985024 62516233152 72935605344 82052556012 83354977536 93774349728 97247473792 109403408016 111139970048 125032466304 145871210688 164105112024 166709955072 187548699456 194494947584 218806816032 250064932608 291742421376 328210224048 333419910144 375097398912 388989895168 437613632064 500129865216 583484842752 656420448096 750194797824 777979790336 875227264128 1000259730432 1166969685504 1312840896192 1500389595648 1750454528256 2333939371008 2625681792384 3000779191296 3500909056512 5251363584768 7001818113024 10502727169536 21005454339072
• Sum of all divisors σ(n): 71115240330240
• Sum of proper divisors (its aliquot sum) s(n): 50109785991168
• 21005454339072 is an abundant number, because the sum of its proper divisors (50109785991168) is greater than itself. Its abundance is 29104331652096

Bases of 21005454339072

• Binary: 100110001101010110110101001001110110000000000₂
• Hexadecimal: 0x131AB6A4EC00
• Base-36: 7G1RT62O0

Squares and roots of 21005454339072

• 21005454339072 squared (21005454339072²) is 441229111990838712345821184
• 21005454339072 cubed (21005454339072³) is 9268217964992848454557042845259816501248
• The square root of 21005454339072 is 4583170.7735008085
• The cube root of 21005454339072 is 27591.6301456053

Scales and comparisons

• 21,005,454,339,072 seconds is equal to 667,908 years, 24 weeks, 4 days, 11 hours, 31 minutes, 12 seconds.
• To count from 1 to 21,005,454,339,072 would take you about one million, six hundred sixty-nine thousand, seven hundred seventy-one 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 21005454339072 cubic inches would be around 2299.3 feet tall.

Recreational maths with 21005454339072

• 21005454339072 backwards is 27093345450012
• The number of decimal digits it has is: 14
• The sum of 21005454339072's digits is 45
• More coming soon!