21000993741

Names of 21000993741

• Cardinal: 21000993741 can be written as Twenty-one billion, nine hundred ninety-three thousand, seven hundred forty-one.

Scientific notation

• Scientific notation: 2.1000993741 × 10¹⁰

Factors of 21000993741

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 402

Divisors of 21000993741

• Number of divisors d(n): 256
• Complete list of divisors:
  1 3 7 9 13 17 21 27 31 39 49 51 63 91 93 117 119 147 153 189 217 221 273 279 331 343 351 357 403 441 459 527 637 651 663 819 833 837 993 1029 1071 1209 1323 1519 1547 1581 1911 1953 1989 2317 2457 2499 2821 2979 3087 3213 3627 3689 4303 4459 4557 4641 4743 5627 5733 5831 5859 5967 6851 6951 7497 8463 8937 9261 10261 10633 10829 10881 11067 12909 13377 13671 13923 14229 16219 16881 17199 17493 19747 20553 20853 22491 25389 25823 30121 30783 31899 32487 33201 38727 39389 40131 41013 41769 47957 48657 50643 52479 59241 61659 62559 71827 73151 75803 76167 77469 90363 92349 95697 97461 99603 113533 116181 118167 120393 133393 138229 143871 145971 151929 157437 174437 177723 180761 184977 210847 215481 219453 227409 232407 271089 275723 277047 287091 292383 335699 340599 354501 400179 414687 431613 437913 502789 512057 523311 533169 542283 632541 646443 658359 682227 697221 813267 827169 933751 1007097 1021797 1063503 1200537 1221059 1244061 1294839 1475929 1508367 1536171 1569933 1626849 1897623 1930061 1939329 1975077 2046681 2267681 2349893 2481507 2801253 3021291 3065391 3519523 3584399 3601611 3663177 3732183 4427787 4525101 4608513 4709799 4880547 5692869 5790183 6536257 6803043 7049679 7444521 8403759 8547413 9063873 10558569 10753197 10989531 13283361 13575303 13825539 15873767 17370549 19608771 20409129 21149037 25090793 25211277 25642239 31675707 32259591 32968593 39850083 45753799 47621301 52111647 58826313 59831891 61227387 63447111 75272379 76926717 95027121 96778773 111116369 137261397 142863903 176478939 179495673 225817137 230780151 333349107 411784191 428591709 538487019 677451411 777814583 1000047321 1235352573 1615461057 2333443749 3000141963 7000331247 21000993741
• Sum of all divisors σ(n): 42835968000
• Sum of proper divisors (its aliquot sum) s(n): 21834974259
• 21000993741 is an abundant number, because the sum of its proper divisors (21834974259) is greater than itself. Its abundance is 833980518

Bases of 21000993741

• Binary: 10011100011110000011011101111001101₂
• Hexadecimal: 0x4E3C1BBCD
• Base-36: 9NBG6H9

Squares and roots of 21000993741

• 21000993741 squared (21000993741²) is 441041738109521175081
• 21000993741 cubed (21000993741³) is 9262314781557815370383046168021
• The square root of 21000993741 is 144917.1961535277
• The cube root of 21000993741 is 2758.9676940451

Scales and comparisons

• 21,000,993,741 seconds is equal to 667 years, 39 weeks, 6 days, 1 hour, 22 minutes, 21 seconds.
• To count from 1 to 21,000,993,741 would take you about one thousand, three hundred thirty-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 21000993741 cubic inches would be around 229.9 feet tall.

Recreational maths with 21000993741

• 21000993741 backwards is 14739900012
• The number of decimal digits it has is: 11
• The sum of 21000993741's digits is 36
• More coming soon!