21036607872

Names of 21036607872

• Cardinal: 21036607872 can be written as Twenty-one billion, thirty-six million, six hundred seven thousand, eight hundred seventy-two.

Scientific notation

• Scientific notation: 2.1036607872 × 10¹⁰

Factors of 21036607872

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 194

Divisors of 21036607872

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 19 21 24 28 32 38 42 48 49 56 57 64 76 84 96 98 112 114 128 133 147 152 163 168 192 196 224 228 266 294 304 326 336 361 384 392 399 448 456 489 532 588 608 652 672 722 784 798 896 912 931 978 1064 1083 1141 1176 1216 1304 1344 1444 1568 1596 1824 1862 1956 2128 2166 2282 2352 2432 2527 2608 2688 2793 2888 3097 3136 3192 3423 3648 3724 3912 4256 4332 4564 4704 5054 5216 5586 5776 6194 6272 6384 6846 6859 7296 7448 7581 7824 7987 8512 8664 9128 9291 9408 10108 10432 11172 11552 12388 12768 13692 13718 14896 15162 15648 15974 17024 17328 17689 18256 18582 18816 20216 20577 20864 21679 22344 23104 23961 24776 25536 27384 27436 29792 30324 31296 31948 34656 35378 36512 37164 40432 41154 43358 44688 46208 47922 48013 49552 51072 53067 54768 54872 58843 59584 60648 62592 63896 65037 69312 70756 73024 74328 80864 82308 86716 89376 95844 96026 99104 106134 109536 109744 117686 119168 121296 127792 130074 138624 141512 144039 146048 148656 151753 161728 164616 173432 176529 178752 191688 192052 198208 212268 219072 219488 235372 242592 255584 260148 283024 288078 297312 303506 323456 329232 336091 346864 353058 357504 383376 384104 396416 411901 424536 438144 438976 455259 470744 485184 511168 520296 566048 576156 594624 607012 658464 672182 693728 706116 766752 768208 823802 849072 877952 910518 941488 970368 1008273 1022336 1040592 1118017 1132096 1152312 1189248 1214024 1235703 1316928 1344364 1387456 1412232 1533504 1536416 1647604 1698144 1821036 1882976 2016546 2081184 2236034 2264192 2304624 2428048 2471406 2633856 2688728 2774912 2824464 2883307 3067008 3072832 3295208 3354051 3396288 3642072 3765952 4033092 4162368 4472068 4609248 4856096 4942812 5377456 5648928 5766614 6145664 6590416 6708102 6792576 7284144 7531904 7826119 8066184 8324736 8649921 8944136 9218496 9712192 9885624 10754912 11297856 11533228 13180832 13416204 14568288 15652238 16132368 17299842 17888272 18436992 19424384 19771248 21509824 22595712 23066456 23478357 26361664 26832408 29136576 31304476 32264736 34599684 35776544 39542496 43019648 46132912 46956714 52723328 53664816 54782833 58273152 62608952 64529472 69199368 71553088 79084992 92265824 93913428 107329632 109565666 125217904 129058944 138398736 143106176 158169984 164348499 184531648 187826856 214659264 219131332 250435808 276797472 328696998 369063296 375653712 429318528 438262664 500871616 553594944 657393996 751307424 876525328 1001743232 1107189888 1314787992 1502614848 1753050656 2629575984 3005229696 3506101312 5259151968 7012202624 10518303936 21036607872
• Sum of all divisors σ(n): 69033110400
• Sum of proper divisors (its aliquot sum) s(n): 47996502528
• 21036607872 is an abundant number, because the sum of its proper divisors (47996502528) is greater than itself. Its abundance is 26959894656

Bases of 21036607872

• Binary: 10011100101111000010010100110000000₂
• Hexadecimal: 0x4E5E12980
• Base-36: 9NWNIIO

Squares and roots of 21036607872

• 21036607872 squared (21036607872²) is 442538870760292368384
• 21036607872 cubed (21036607872³) is 9309516692301957061768378318848
• The square root of 21036607872 is 145040.0216216201
• The cube root of 21036607872 is 2760.5263940323

Scales and comparisons

• 21,036,607,872 seconds is equal to 668 years, 46 weeks, 5 days, 6 hours, 11 minutes, 12 seconds.
• To count from 1 to 21,036,607,872 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 21036607872 cubic inches would be around 230 feet tall.

Recreational maths with 21036607872

• 21036607872 backwards is 27870663012
• 21036607872 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21036607872's digits is 42
• More coming soon!