21008434349785140

Names of 21008434349785140

• Cardinal: 21008434349785140 can be written as Twenty-one quadrillion, eight trillion, four hundred thirty-four billion, three hundred forty-nine million, seven hundred eighty-five thousand, one hundred forty.

Scientific notation

• Scientific notation: 2.100843434978514 × 10¹⁶

Factors of 21008434349785140

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 21160673

Divisors of 21008434349785140

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 1423 2846 3877 4269 5692 7115 7754 8538 11631 12807 14230 15508 17076 19385 21345 23262 25614 28460 34893 38770 42690 46524 51228 58155 64035 69786 77540 85380 116310 128070 139572 174465 232620 256140 348930 697860 5516971 11033942 16550913 21155363 22067884 27584855 33101826 42310726 49652739 55169710 63466089 66203652 82754565 84621452 99305478 105776815 110339420 126932178 165509130 190398267 198610956 211553630 248263695 253864356 317330445 331018260 380796534 423107260 496527390 634660890 761593068 951991335 993054780 1269321780 1903982670 3807965340 30104081549 60208163098 82019342351 90312244647 120416326196 150520407745 164038684702 180624489294 246058027053 270936733941 301040815490 328077369404 361248978588 410096711755 451561223235 492116054106 541873467882 602081630980 738174081159 820193423510 903122446470 984232108212 1083746935764 1230290135265 1354683669705 1476348162318 1640386847020 1806244892940 2460580270530 2709367339410 2952696324636 3690870405795 4921160541060 5418734678820 7381740811590 14763481623180 116713524165473 233427048330946 350140572496419 466854096661892 583567620827365 700281144992838 1050421717489257 1167135241654730 1400562289985676 1750702862482095 2100843434978514 2334270483309460 3501405724964190 4201686869957028 5252108587446285 7002811449928380 10504217174892570 21008434349785140
• Sum of all divisors σ(n): 63786818149786368
• Sum of proper divisors (its aliquot sum) s(n): 42778383800001228
• 21008434349785140 is an abundant number, because the sum of its proper divisors (42778383800001228) is greater than itself. Its abundance is 21769949450216088

Bases of 21008434349785140

• Binary: 1001010101000110000111101001010101101001100000000110100₂
• Hexadecimal: 0x4AA30F4AB4C034
• Base-36: 5QUV9I65T10

Squares and roots of 21008434349785140

• 21008434349785140 squared (21008434349785140²) is 441354313829232178091164164819600
• 21008434349785140 cubed (21008434349785140³) is 9272163127075891936466381845900478660806860744000
• The square root of 21008434349785140 is 144942865.8119644741
• The cube root of 21008434349785140 is 275929.3487760659

Scales and comparisons

• 21,008,434,349,785,140 seconds is equal to 668,003,228 years, 50 weeks, 2 days, 17 hours, 39 minutes.
• To count from 1 to 21,008,434,349,785,140 would take you about two billion, four million, nine thousand, six hundred eighty-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 21008434349785140 cubic inches would be around 22994.1 feet tall.

Recreational maths with 21008434349785140

• 21008434349785140 backwards is 04158794343480012
• The number of decimal digits it has is: 17
• The sum of 21008434349785140's digits is 63
• More coming soon!