21121235200

Names of 21121235200

• Cardinal: 21121235200 can be written as Twenty-one billion, one hundred twenty-one million, two hundred thirty-five thousand, two hundred.

Scientific notation

• Scientific notation: 2.11212352 × 10¹⁰

Factors of 21121235200

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 283

Divisors of 21121235200

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 4 5 8 10 13 16 17 20 25 26 32 34 40 50 52 64 65 68 80 85 100 104 109 128 130 136 137 160 170 200 208 218 221 256 260 272 274 320 325 340 400 416 425 436 442 520 544 545 548 640 650 680 685 800 832 850 872 884 1040 1088 1090 1096 1105 1280 1300 1360 1370 1417 1600 1664 1700 1744 1768 1781 1853 2080 2176 2180 2192 2210 2329 2600 2720 2725 2740 2834 3200 3328 3400 3425 3488 3536 3562 3706 4160 4352 4360 4384 4420 4658 5200 5440 5450 5480 5525 5668 6400 6800 6850 6976 7072 7085 7124 7412 8320 8720 8768 8840 8905 9265 9316 10400 10880 10900 10960 11050 11336 11645 13600 13700 13952 14144 14170 14248 14824 14933 16640 17440 17536 17680 17810 18530 18632 20800 21760 21800 21920 22100 22672 23290 24089 27200 27400 27904 28288 28340 28496 29648 29866 30277 34880 35072 35360 35425 35620 37060 37264 41600 43600 43840 44200 44525 45344 46325 46580 48178 54400 54800 56576 56680 56992 58225 59296 59732 60554 69760 70720 70850 71240 74120 74528 74665 83200 87200 87680 88400 89050 90688 92650 93160 96356 108800 109600 113360 113984 116450 118592 119464 120445 121108 139520 141440 141700 142480 148240 149056 149330 151385 174400 175360 176800 178100 181376 185300 186320 192712 194129 219200 226720 227968 232900 237184 238928 240890 242216 253861 282880 283400 284960 296480 298112 298660 302770 348800 353600 356200 362752 370600 372640 373325 385424 388258 438400 453440 455936 465800 474368 477856 481780 484432 507722 566800 569920 592960 596224 597320 602225 605540 697600 707200 712400 741200 745280 746650 756925 770848 776516 876800 906880 931600 955712 963560 968864 970645 1015444 1133600 1139840 1185920 1194640 1204450 1211080 1269305 1414400 1424800 1482400 1490560 1493300 1513850 1541696 1553032 1813760 1863200 1911424 1927120 1937728 1941290 2030888 2267200 2279680 2371840 2389280 2408900 2422160 2538610 2849600 2964800 2981120 2986600 3027700 3083392 3106064 3300193 3726400 3822848 3854240 3875456 3882580 4061776 4534400 4778560 4817800 4844320 4853225 5077220 5699200 5929600 5973200 6055400 6166784 6212128 6346525 6600386 7452800 7708480 7750912 7765160 8123552 9068800 9557120 9635600 9688640 9706450 10154440 11398400 11859200 11946400 12110800 12424256 12693050 13200772 14905600 15416960 15530320 16247104 16500965 19114240 19271200 19377280 19412900 20308880 23892800 24221600 24848512 25386100 26401544 30833920 31060640 32494208 33001930 38542400 38754560 38825800 40617760 47785600 48443200 49697024 50772200 52803088 62121280 64988416 66003860 77084800 77651600 81235520 82504825 95571200 96886400 101544400 105606176 124242560 132007720 154169600 155303200 162471040 165009650 193772800 203088800 211212352 248485120 264015440 310606400 324942080 330019300 406177600 422424704 528030880 621212800 660038600 812355200 844849408 1056061760 1242425600 1320077200 1624710400 2112123520 2640154400 4224247040 5280308800 10560617600 21121235200
• Sum of all divisors σ(n): 60597527760
• Sum of proper divisors (its aliquot sum) s(n): 39476292560
• 21121235200 is an abundant number, because the sum of its proper divisors (39476292560) is greater than itself. Its abundance is 18355057360

Bases of 21121235200

• Binary: 10011101010111011000111100100000000₂
• Hexadecimal: 0x4EAEC7900
• Base-36: 9PB1DDS

Squares and roots of 21121235200

• 21121235200 squared (21121235200²) is 446106576373719040000
• 21121235200 cubed (21121235200³) is 9422321923856082942558208000000
• The square root of 21121235200 is 145331.4666546787
• The cube root of 21121235200 is 2764.2231782947

Scales and comparisons

• 21,121,235,200 seconds is equal to 671 years, 30 weeks, 4 days, 17 hours, 46 minutes, 40 seconds.
• To count from 1 to 21,121,235,200 would take you about one thousand, three hundred forty-three 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 21121235200 cubic inches would be around 230.4 feet tall.

Recreational maths with 21121235200

• 21121235200 backwards is 00253212112
• The number of decimal digits it has is: 11
• The sum of 21121235200's digits is 19
• More coming soon!