21039730400

Names of 21039730400

• Cardinal: 21039730400 can be written as Twenty-one billion, thirty-nine million, seven hundred thirty thousand, four hundred.

Scientific notation

• Scientific notation: 2.10397304 × 10¹⁰

Factors of 21039730400

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 2113

Divisors of 21039730400

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 4 5 8 10 13 16 17 20 25 26 32 34 40 50 52 59 65 68 80 85 100 104 118 130 136 160 170 200 208 221 236 260 272 295 325 340 400 416 425 442 472 520 544 590 650 680 767 800 850 884 944 1003 1040 1105 1180 1300 1360 1475 1534 1700 1768 1888 2006 2017 2080 2210 2360 2600 2720 2950 3068 3400 3536 3835 4012 4034 4420 4720 5015 5200 5525 5900 6136 6800 7072 7670 8024 8068 8840 9440 10030 10085 10400 11050 11800 12272 13039 13600 15340 16048 16136 17680 19175 20060 20170 22100 23600 24544 25075 26078 26221 30680 32096 32272 34289 35360 38350 40120 40340 44200 47200 50150 50425 52156 52442 61360 64544 65195 68578 76700 80240 80680 88400 100300 100850 104312 104884 119003 122720 130390 131105 137156 153400 160480 161360 171445 176800 200600 201700 208624 209768 238006 260780 262210 274312 306800 322720 325975 342890 401200 403400 417248 419536 445757 476012 521560 524420 548624 595015 613600 651950 655525 685780 802400 806800 839072 857225 891514 952024 1043120 1048840 1097248 1190030 1303900 1311050 1371560 1547039 1613600 1714450 1783028 1904048 2023051 2086240 2097680 2228785 2380060 2607800 2622100 2743120 2975075 3094078 3428900 3566056 3808096 4046102 4195360 4457570 4760120 5215600 5244200 5486240 5950150 6188156 6857800 7132112 7735195 8092204 8915140 9520240 10115255 10431200 10488400 11143925 11900300 12376312 13715600 14264224 15470390 16184408 17830280 19040480 20230510 20976800 22287850 23800600 24752624 26299663 27431200 30940780 32368816 35660560 38675975 40461020 44575700 47601200 49505248 50576275 52599326 61881560 64737632 71321120 77351950 80922040 89151400 95202400 101152550 105198652 123763120 131498315 154703900 161844080 178302800 202305100 210397304 247526240 262996630 309407800 323688160 356605600 404610200 420794608 525993260 618815600 657491575 809220400 841589216 1051986520 1237631200 1314983150 1618440800 2103973040 2629966300 4207946080 5259932600 10519865200 21039730400
• Sum of all divisors σ(n): 59590248480
• Sum of proper divisors (its aliquot sum) s(n): 38550518080
• 21039730400 is an abundant number, because the sum of its proper divisors (38550518080) is greater than itself. Its abundance is 17510787680

Bases of 21039730400

• Binary: 10011100110000100001100111011100000₂
• Hexadecimal: 0x4E610CEE0
• Base-36: 9NYIFVK

Squares and roots of 21039730400

• 21039730400 squared (21039730400²) is 442670255304684160000
• 21039730400 cubed (21039730400³) is 9313662827709724583550464000000
• The square root of 21039730400 is 145050.7855890481
• The cube root of 21039730400 is 2760.6629717317

Scales and comparisons

• 21,039,730,400 seconds is equal to 668 years, 51 weeks, 6 days, 9 hours, 33 minutes, 20 seconds.
• To count from 1 to 21,039,730,400 would take you about one thousand, three hundred thirty-seven 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 21039730400 cubic inches would be around 230.1 feet tall.

Recreational maths with 21039730400

• 21039730400 backwards is 00403793012
• The number of decimal digits it has is: 11
• The sum of 21039730400's digits is 29
• More coming soon!