21001873896

Names of 21001873896

• Cardinal: 21001873896 can be written as Twenty-one billion, one million, eight hundred seventy-three thousand, eight hundred ninety-six.

Scientific notation

• Scientific notation: 2.1001873896 × 10¹⁰

Factors of 21001873896

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 90

Divisors of 21001873896

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 6 8 9 12 18 19 23 24 36 38 43 46 57 69 72 76 86 92 114 129 138 152 171 172 184 207 228 258 276 342 344 361 387 414 437 456 516 552 684 722 774 817 828 874 989 1032 1083 1311 1368 1444 1548 1634 1656 1748 1849 1978 2166 2451 2622 2888 2967 3096 3249 3268 3496 3698 3933 3956 4332 4902 5244 5547 5934 6498 6536 6859 7353 7396 7866 7912 8303 8664 8901 9804 10488 11094 11868 12996 13718 14706 14792 15523 15732 16606 16641 17802 18791 19608 20577 22188 23736 24909 25992 27436 29412 31046 31464 33212 33282 35131 35604 37582 41154 42527 44376 46569 49818 54872 56373 58824 61731 62092 66424 66564 70262 71208 74727 75164 82308 85054 93138 99636 105393 112746 123462 124184 127581 133128 139707 140524 149454 150328 157757 164616 169119 170108 186276 199272 210786 225492 246924 255162 279414 281048 294937 298908 315514 316179 338238 340216 357029 372552 382743 421572 450984 473271 493848 510324 558828 589874 597816 631028 632358 667489 676476 714058 765486 808013 843144 884811 946542 1020648 1071087 1117656 1179748 1262056 1264716 1334978 1352952 1419813 1428116 1530972 1616026 1769622 1893084 2002467 2142174 2359496 2424039 2529432 2654433 2669956 2839626 2856232 3061944 3213261 3232052 3539244 3786168 4004934 4284348 4848078 5308866 5339912 5679252 6007401 6426522 6464104 6783551 7078488 7272117 8009868 8568696 9696156 10617732 11358504 12014802 12682291 12853044 13567102 14544234 15352247 16019736 19392312 20350653 21235464 24029604 25364582 25706088 27134204 29088468 30704494 38046873 40701306 46056741 48059208 50729164 54268408 58176936 61051959 61408988 76093746 81402612 92113482 101458328 114140619 122103918 122817976 138170223 152187492 162805224 184226964 228281238 244207836 276340446 291692693 304374984 368453928 456562476 488415672 552680892 583385386 875078079 913124952 1105361784 1166770772 1750156158 2333541544 2625234237 3500312316 5250468474 7000624632 10500936948 21001873896
• Sum of all divisors σ(n): 64140897600
• Sum of proper divisors (its aliquot sum) s(n): 43139023704
• 21001873896 is an abundant number, because the sum of its proper divisors (43139023704) is greater than itself. Its abundance is 22137149808

Bases of 21001873896

• Binary: 10011100011110011110010100111101000₂
• Hexadecimal: 0x4E3CF29E8
• Base-36: 9NBZ1M0

Squares and roots of 21001873896

• 21001873896 squared (21001873896²) is 441078707143486218816
• 21001873896 cubed (21001873896³) is 9263479385638211945387494427136
• The square root of 21001873896 is 144920.2328731223
• The cube root of 21001873896 is 2759.0062364319

Scales and comparisons

• 21,001,873,896 seconds is equal to 667 years, 41 weeks, 2 days, 5 hours, 51 minutes, 36 seconds.
• To count from 1 to 21,001,873,896 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 21001873896 cubic inches would be around 229.9 feet tall.

Recreational maths with 21001873896

• 21001873896 backwards is 69837810012
• The number of decimal digits it has is: 11
• The sum of 21001873896's digits is 45
• More coming soon!