21170987040

Names of 21170987040

• Cardinal: 21170987040 can be written as Twenty-one billion, one hundred seventy million, nine hundred eighty-seven thousand and forty.

Scientific notation

• Scientific notation: 2.117098704 × 10¹⁰

Factors of 21170987040

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 3025

Divisors of 21170987040

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 32 35 40 42 48 49 56 60 70 80 84 96 98 105 112 120 140 147 160 168 196 210 224 240 245 280 294 336 337 392 420 480 490 560 588 672 674 735 784 840 980 1011 1120 1176 1348 1470 1568 1680 1685 1960 2022 2352 2359 2671 2696 2940 3360 3370 3920 4044 4704 4718 5055 5342 5392 5880 6740 7077 7840 8013 8088 9436 10110 10684 10784 11760 11795 13355 13480 14154 16026 16176 16513 18697 18872 20220 21368 23520 23590 26710 26960 28308 32052 32352 33026 35385 37394 37744 40065 40440 42736 47180 49539 53420 53920 56091 56616 64104 66052 70770 74788 75488 80130 80880 82565 85472 93485 94360 99078 106840 112182 113232 128208 130879 132104 141540 149576 160260 161760 165130 186970 188720 198156 213680 224364 226464 247695 256416 261758 264208 280455 283080 299152 320520 330260 373940 377440 392637 396312 427360 448728 495390 523516 528416 560910 566160 598304 641040 654395 660520 747880 785274 792624 897456 900127 990780 1047032 1121820 1132320 1282080 1308790 1321040 1495760 1570548 1585248 1794912 1800254 1963185 1981560 2094064 2243640 2617580 2642080 2700381 2991520 3141096 3600508 3926370 3963120 4188128 4487280 4500635 5235160 5400762 6282192 6300889 7201016 7852740 7926240 8974560 9001270 10470320 10801524 12564384 12601778 13501905 14402032 15705480 18002540 18902667 20940640 21603048 25203556 27003810 28804064 31410960 31504445 36005080 37805334 43206096 44106223 50407112 54007620 62821920 63008890 72010160 75610668 86412192 88212446 94513335 100814224 108015240 126017780 132318669 144020320 151221336 176424892 189026670 201628448 216030480 220531115 252035560 264637338 302442672 352849784 378053340 432060960 441062230 504071120 529274676 604885344 661593345 705699568 756106680 882124460 1008142240 1058549352 1323186690 1411399136 1512213360 1764248920 2117098704 2646373380 3024426720 3528497840 4234197408 5292746760 7056995680 10585493520 21170987040
• Sum of all divisors σ(n): 77835873024
• Sum of proper divisors (its aliquot sum) s(n): 56664885984
• 21170987040 is an abundant number, because the sum of its proper divisors (56664885984) is greater than itself. Its abundance is 35493898944

Bases of 21170987040

• Binary: 10011101101111000111010000000100000₂
• Hexadecimal: 0x4EDE3A020
• Base-36: 9Q4NQ5C

Squares and roots of 21170987040

• 21170987040 squared (21170987040²) is 448210692247847961600
• 21170987040 cubed (21170987040³) is 9489062756768617662924017664000
• The square root of 21170987040 is 145502.5327614609
• The cube root of 21170987040 is 2766.3918858727

Scales and comparisons

• 21,170,987,040 seconds is equal to 673 years, 8 weeks, 6 days, 13 hours, 44 minutes.
• To count from 1 to 21,170,987,040 would take you about one thousand, three hundred forty-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 21170987040 cubic inches would be around 230.5 feet tall.

Recreational maths with 21170987040

• 21170987040 backwards is 04078907112
• The number of decimal digits it has is: 11
• The sum of 21170987040's digits is 39
• More coming soon!