21128248618971584

Names of 21128248618971584

• Cardinal: 21128248618971584 can be written as Twenty-one quadrillion, one hundred twenty-eight trillion, two hundred forty-eight billion, six hundred eighteen million, nine hundred seventy-one thousand, five hundred eighty-four.

Scientific notation

• Scientific notation: 2.1128248618971584 × 10¹⁶

Factors of 21128248618971584

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 778986540

Divisors of 21128248618971584

• Number of divisors d(n): 112
• Complete list of divisors:
  1 2 4 8 16 17 32 34 64 68 97 136 194 257 272 388 514 544 776 1028 1088 1552 1649 2056 3104 3298 4112 4369 6208 6596 8224 8738 13192 16448 17476 24929 26384 34952 49858 52768 69904 99716 105536 139808 199432 279616 398864 423793 797728 847586 1595456 1695172 3390344 6780688 13561376 27122752 778986167 1557972334 3115944668 6231889336 12463778672 13242764839 24927557344 26485529678 49855114688 52971059356 75561658199 105942118712 151123316398 200199444919 211884237424 302246632796 400398889838 423768474848 604493265592 800797779676 847536949696 1208986531184 1284548189383 1601595559352 2417973062368 2569096378766 3203191118704 3403390563623 4835946124736 5138192757532 6406382237408 6806781127246 10276385515064 12812764474816 13613562254492 19419346157143 20552771030128 27227124508984 38838692314286 41105542060256 54454249017968 77677384628572 82211084120512 108908498035936 155354769257144 217816996071872 310709538514288 330128884671431 621419077028576 660257769342862 1242838154057152 1320515538685724 2641031077371448 5282062154742896 10564124309485792 21128248618971584
• Sum of all divisors σ(n): 45024796017133632
• Sum of proper divisors (its aliquot sum) s(n): 23896547398162048
• 21128248618971584 is an abundant number, because the sum of its proper divisors (23896547398162048) is greater than itself. Its abundance is 2768298779190464

Bases of 21128248618971584

• Binary: 1001011000100000000011110111001101010001111000111000000₂
• Hexadecimal: 0x4B1007B9A8F1C0
• Base-36: 5S1C7F4ISOW

Squares and roots of 21128248618971584

• 21128248618971584 squared (21128248618971584²) is 446402889705074646535485799469056
• 21128248618971584 cubed (21128248618971584³) is 9431711237916167733441431575970241000755951304704
• The square root of 21128248618971584 is 145355593.6968769839
• The cube root of 21128248618971584 is 276452.9102793271

Scales and comparisons

• 21,128,248,618,971,584 seconds is equal to 671,812,952 years, 6 weeks, 1 day, 10 hours, 19 minutes, 44 seconds.
• To count from 1 to 21,128,248,618,971,584 would take you about two billion, fifteen million, four hundred thirty-eight thousand, eight hundred fifty-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 21128248618971584 cubic inches would be around 23037.7 feet tall.

Recreational maths with 21128248618971584

• 21128248618971584 backwards is 48517981684282112
• The number of decimal digits it has is: 17
• The sum of 21128248618971584's digits is 77
• More coming soon!