21003691392

Names of 21003691392

• Cardinal: 21003691392 can be written as Twenty-one billion, three million, six hundred ninety-one thousand, three hundred ninety-two.

Scientific notation

• Scientific notation: 2.1003691392 × 10¹⁰

Factors of 21003691392

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 226

Divisors of 21003691392

• Number of divisors d(n): 448
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 31 32 36 48 53 54 62 64 72 81 93 96 106 108 124 128 137 144 159 162 186 192 212 216 243 248 274 279 288 318 324 372 384 411 424 432 477 486 496 548 558 576 636 648 729 744 822 837 848 864 954 972 992 1096 1116 1152 1233 1272 1296 1431 1458 1488 1643 1644 1674 1696 1728 1908 1944 1984 2192 2232 2466 2511 2544 2592 2862 2916 2976 3286 3288 3348 3392 3456 3699 3816 3888 3968 4247 4293 4384 4464 4929 4932 5022 5088 5184 5724 5832 5952 6572 6576 6696 6784 7261 7398 7533 7632 7776 8494 8586 8768 8928 9858 9864 10044 10176 10368 11097 11448 11664 11904 12741 12879 13144 13152 13392 14522 14787 14796 15066 15264 15552 16988 17172 17536 17856 19716 19728 20088 20352 21783 22194 22599 22896 23328 25482 25758 26288 26304 26784 29044 29574 29592 30132 30528 31104 33291 33976 34344 35712 38223 38637 39432 39456 40176 43566 44361 44388 45198 45792 46656 50964 51516 52576 52608 53568 58088 59148 59184 60264 61056 65349 66582 67952 68688 76446 77274 78864 78912 80352 87132 88722 88776 90396 91584 93312 99873 101928 103032 105152 107136 114669 116176 118296 118368 120528 130698 133083 133164 135904 137376 152892 154548 157728 157824 160704 174264 177444 177552 180792 183168 196047 199746 203856 206064 210304 225091 229338 232352 236592 236736 241056 261396 266166 266328 271808 274752 305784 309096 315456 321408 344007 348528 354888 355104 361584 392094 399249 399492 407712 412128 450182 458676 464704 473184 473472 482112 522792 532332 532656 543616 549504 588141 611568 618192 630912 675273 688014 697056 709776 710208 723168 784188 798498 798984 815424 824256 900364 917352 929408 946368 964224 1032021 1045584 1064664 1065312 1176282 1197747 1223136 1236384 1350546 1376028 1394112 1419552 1420416 1446336 1568376 1596996 1597968 1630848 1648512 1764423 1800728 1834704 1892736 2025819 2064042 2091168 2129328 2130624 2352564 2395494 2446272 2472768 2701092 2752056 2788224 2839104 2892672 3096063 3136752 3193992 3195936 3528846 3601456 3669408 4051638 4128084 4182336 4258656 4261248 4705128 4790988 4892544 4945536 5293269 5402184 5504112 5678208 6077457 6192126 6273504 6387984 6391872 7057692 7202912 7338816 8103276 8256168 8364672 8517312 9410256 9581976 10586538 10804368 11008224 12154914 12384252 12547008 12775968 12783744 14115384 14405824 14677632 16206552 16512336 17034624 18232371 18820512 19163952 21173076 21608736 22016448 24309828 24768504 25094016 25551936 28230768 28811648 32413104 33024672 36464742 37641024 38327904 42346152 43217472 44032896 48619656 49537008 51103872 54697113 56461536 64826208 66049344 72929484 75282048 76655808 84692304 86434944 97239312 99074016 109394226 112923072 129652416 132098688 145858968 153311616 164091339 169384608 194478624 198148032 218788452 225846144 259304832 291717936 328182678 338769216 388957248 396296064 437576904 583435872 656365356 677538432 777914496 875153808 1166871744 1312730712 1750307616 2333743488 2625461424 3500615232 5250922848 7001230464 10501845696 21003691392
• Sum of all divisors σ(n): 66463493760
• Sum of proper divisors (its aliquot sum) s(n): 45459802368
• 21003691392 is an abundant number, because the sum of its proper divisors (45459802368) is greater than itself. Its abundance is 24456110976

Bases of 21003691392

• Binary: 10011100011111010101110010110000000₂
• Hexadecimal: 0x4E3EAE580
• Base-36: 9ND2000

Squares and roots of 21003691392

• 21003691392 squared (21003691392²) is 441155052090374897664
• 21003691392 cubed (21003691392³) is 9265884570127918844118237708288
• The square root of 21003691392 is 144926.5034146619
• The cube root of 21003691392 is 2759.0858219995

Scales and comparisons

• 21,003,691,392 seconds is equal to 667 years, 44 weeks, 2 days, 6 hours, 43 minutes, 12 seconds.
• To count from 1 to 21,003,691,392 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 21003691392 cubic inches would be around 229.9 feet tall.

Recreational maths with 21003691392

• 21003691392 backwards is 29319630012
• 21003691392 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21003691392's digits is 36
• More coming soon!