21431306880

Names of 21431306880

• Cardinal: 21431306880 can be written as Twenty-one billion, four hundred thirty-one million, three hundred six thousand, eight hundred eighty.

Scientific notation

• Scientific notation: 2.143130688 × 10¹⁰

Factors of 21431306880

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 6377

Divisors of 21431306880

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 19 20 24 30 31 32 36 38 40 45 48 57 60 62 64 72 76 80 90 93 95 96 114 120 124 128 144 152 155 160 171 180 186 190 192 228 240 248 279 285 288 304 310 320 342 360 372 380 384 456 465 480 496 558 570 576 589 608 620 640 684 720 744 760 855 912 930 960 992 1116 1140 1152 1178 1216 1240 1368 1395 1440 1488 1520 1710 1767 1824 1860 1920 1984 2232 2280 2356 2432 2480 2736 2790 2880 2945 2976 3040 3420 3534 3648 3720 3968 4464 4560 4712 4960 5301 5472 5580 5760 5890 5952 6080 6317 6840 7068 7296 7440 8835 8928 9120 9424 9920 10602 10944 11160 11780 11904 12160 12634 13680 14136 14880 17670 17856 18240 18848 18951 19840 21204 21888 22320 23560 25268 26505 27360 28272 29760 31585 35340 35712 36480 37696 37902 42408 44640 47120 50536 53010 54720 56544 56853 59520 63170 70680 75392 75804 84816 89280 94240 94755 101072 106020 109440 113088 113706 120023 126340 141360 151608 169632 178560 188480 189510 195827 202144 212040 226176 227412 240046 252680 282720 284265 303216 339264 360069 376960 379020 391654 404288 424080 454824 480092 505360 565440 568530 587481 600115 606432 678528 720138 758040 783308 808576 848160 909648 960184 979135 1010720 1080207 1130880 1137060 1174962 1200230 1212864 1440276 1516080 1566616 1696320 1762443 1800345 1819296 1920368 1958270 2021440 2160414 2274120 2349924 2400460 2425728 2880552 2937405 3032160 3133232 3392640 3524886 3600690 3638592 3720713 3840736 3916540 4042880 4320828 4548240 4699848 4800920 5401035 5761104 5874810 6064320 6266464 7049772 7201380 7277184 7441426 7681472 7833080 8641656 8812215 9096480 9399696 9601840 10802070 11162139 11522208 11749620 12128640 12532928 14099544 14402760 14882852 15362944 15666160 17283312 17624430 18192960 18603565 18799392 19203680 21604140 22324278 23044416 23499240 25065856 28199088 28805520 29765704 31332320 33486417 34566624 35248860 36385920 37207130 37598784 38407360 43208280 44648556 46088832 46998480 55810695 56398176 57611040 59531408 62664640 66972834 69133248 70497720 74414260 75197568 76814720 86416560 89297112 93996960 111621390 112796352 115222080 119062816 125329280 133945668 138266496 140995440 148828520 167432085 172833120 178594224 187993920 223242780 225592704 230444160 238125632 267891336 281990880 297657040 334864170 345666240 357188448 375987840 446485560 476251264 535782672 563981760 595314080 669728340 691332480 714376896 892971120 1071565344 1127963520 1190628160 1339456680 1428753792 1785942240 2143130688 2381256320 2678913360 3571884480 4286261376 5357826720 7143768960 10715653440 21431306880
• Sum of all divisors σ(n): 80425612800
• Sum of proper divisors (its aliquot sum) s(n): 58994305920
• 21431306880 is an abundant number, because the sum of its proper divisors (58994305920) is greater than itself. Its abundance is 37562999040

Bases of 21431306880

• Binary: 10011111101011001111100101010000000₂
• Hexadecimal: 0x4FD67CA80
• Base-36: 9UFNA80

Squares and roots of 21431306880

• 21431306880 squared (21431306880²) is 459300914584735334400
• 21431306880 cubed (21431306880³) is 9843418850730130715105820672000
• The square root of 21431306880 is 146394.3539894897
• The cube root of 21431306880 is 2777.6843059225

Scales and comparisons

• 21,431,306,880 seconds is equal to 681 years, 23 weeks, 2 days, 12 hours, 48 minutes.
• To count from 1 to 21,431,306,880 would take you about one thousand, three hundred sixty-two 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 21431306880 cubic inches would be around 231.5 feet tall.

Recreational maths with 21431306880

• 21431306880 backwards is 08860313412
• 21431306880 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21431306880's digits is 36
• More coming soon!