21239832432

Names of 21239832432

• Cardinal: 21239832432 can be written as Twenty-one billion, two hundred thirty-nine million, eight hundred thirty-two thousand, four hundred thirty-two.

Scientific notation

• Scientific notation: 2.1239832432 × 10¹⁰

Factors of 21239832432

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 6507

Divisors of 21239832432

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 6 7 8 12 13 14 16 21 24 26 28 39 42 48 49 52 56 78 84 91 98 104 109 112 147 156 168 182 196 208 218 273 294 312 327 336 364 392 436 546 588 624 637 654 728 763 784 872 1092 1176 1274 1308 1417 1456 1526 1744 1911 2184 2289 2352 2548 2616 2834 3052 3822 4251 4368 4578 5096 5232 5341 5668 6104 6373 7644 8502 9156 9919 10192 10682 11336 12208 12746 15288 16023 17004 18312 19119 19838 21364 22672 25492 29757 30576 32046 34008 36624 38238 39676 42728 44611 50984 59514 64092 68016 69433 76476 79352 82849 85456 89222 101968 119028 128184 133833 138866 152952 158704 165698 178444 208299 238056 248547 256368 267666 277732 305904 312277 331396 356888 416598 476112 497094 535332 555464 579943 624554 662792 694657 713776 833196 936831 994188 1070664 1110928 1159886 1249108 1325584 1389314 1666392 1739829 1873662 1988376 2083971 2141328 2319772 2498216 2778628 3332784 3479658 3747324 3976752 4059601 4167942 4639544 4862599 4996432 5557256 6959316 7494648 8119202 8335884 9030541 9279088 9725198 11114512 12178803 13918632 14587797 14989296 16238404 16671768 18061082 19450396 24357606 27091623 27837264 29175594 32476808 33343536 34038193 36122164 38900792 48715212 54183246 58351188 63213787 64953616 68076386 72244328 77801584 97430424 102114579 108366492 116702376 126427574 136152772 144488656 189641361 194860848 204229158 216732984 233404752 252855148 272305544 379282722 408458316 433465968 442496509 505710296 544611088 758565444 816916632 884993018 1011420592 1327489527 1517130888 1633833264 1769986036 2654979054 3034261776 3539972072 5309958108 7079944144 10619916216 21239832432
• Sum of all divisors σ(n): 69379205280
• Sum of proper divisors (its aliquot sum) s(n): 48139372848
• 21239832432 is an abundant number, because the sum of its proper divisors (48139372848) is greater than itself. Its abundance is 26899540416

Bases of 21239832432

• Binary: 10011110001111111100001111101110000₂
• Hexadecimal: 0x4F1FE1F70
• Base-36: 9R9NBLC

Squares and roots of 21239832432

• 21239832432 squared (21239832432²) is 451130481739439034624
• 21239832432 cubed (21239832432³) is 9581935837113120981093606125568
• The square root of 21239832432 is 145738.9187279775
• The cube root of 21239832432 is 2769.3872943559

Scales and comparisons

• 21,239,832,432 seconds is equal to 675 years, 18 weeks, 5 days, 9 hours, 27 minutes, 12 seconds.
• To count from 1 to 21,239,832,432 would take you about one thousand, three hundred fifty 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 21239832432 cubic inches would be around 230.8 feet tall.

Recreational maths with 21239832432

• 21239832432 backwards is 23423893212
• 21239832432 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21239832432's digits is 39
• More coming soon!