21213653760

Names of 21213653760

• Cardinal: 21213653760 can be written as Twenty-one billion, two hundred thirteen million, six hundred fifty-three thousand, seven hundred sixty.

Scientific notation

• Scientific notation: 2.121365376 × 10¹⁰

Factors of 21213653760

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 15762

Divisors of 21213653760

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 13 15 16 18 20 24 26 27 30 32 36 39 40 45 48 52 54 60 64 65 72 78 80 81 90 96 104 108 117 120 128 130 135 144 156 160 162 180 192 195 208 216 234 240 256 260 270 288 312 320 324 351 360 384 390 405 416 432 468 480 520 540 576 585 624 640 648 702 720 768 780 810 832 864 936 960 1040 1053 1080 1152 1170 1248 1280 1296 1404 1440 1560 1620 1664 1728 1755 1872 1920 2080 2106 2160 2304 2340 2496 2592 2808 2880 3120 3240 3328 3456 3510 3744 3840 4160 4212 4320 4680 4992 5184 5265 5616 5760 6240 6480 6912 7020 7488 8320 8424 8640 9360 9984 10368 10530 11232 11520 12480 12960 14040 14976 15739 16640 16848 17280 18720 20736 21060 22464 24960 25920 28080 29952 31478 33696 34560 37440 42120 44928 47217 49920 51840 56160 62956 67392 74880 78695 84240 89856 94434 103680 112320 125912 134784 141651 149760 157390 168480 188868 204607 224640 236085 251824 269568 283302 314780 336960 377736 409214 424953 449280 472170 503648 566604 613821 629560 673920 708255 755472 818428 849906 944340 1007296 1023035 1133208 1227642 1259120 1274859 1347840 1416510 1510944 1636856 1699812 1841463 1888680 2014592 2046070 2124765 2266416 2455284 2518240 2549718 2833020 3021888 3069105 3273712 3399624 3682926 3777360 4029184 4092140 4249530 4532832 4910568 5036480 5099436 5524389 5666040 6043776 6138210 6374295 6547424 6799248 7365852 7554720 8184280 8499060 9065664 9207315 9821136 10072960 10198872 11048778 11332080 12087552 12276420 12748590 13094848 13598496 14731704 15109440 16368560 16573167 16998120 18131328 18414630 19642272 20145920 20397744 22097556 22664160 24552840 25497180 26189696 27196992 27621945 29463408 30218880 32737120 33146334 33996240 36262656 36829260 39284544 40795488 44195112 45328320 49105680 50994360 52379392 54393984 55243890 58926816 60437760 65474240 66292668 67992480 73658520 78569088 81590976 82865835 88390224 90656640 98211360 101988720 108787968 110487780 117853632 130948480 132585336 135984960 147317040 157138176 163181952 165731670 176780448 181313280 196422720 203977440 220975560 235707264 261896960 265170672 271969920 294634080 326363904 331463340 353560896 392845440 407954880 441951120 471414528 530341344 543939840 589268160 662926680 707121792 785690880 815909760 883902240 1060682688 1178536320 1325853360 1414243584 1631819520 1767804480 2121365376 2357072640 2651706720 3535608960 4242730752 5303413440 7071217920 10606826880 21213653760
• Sum of all divisors σ(n): 81750474960
• Sum of proper divisors (its aliquot sum) s(n): 60536821200
• 21213653760 is an abundant number, because the sum of its proper divisors (60536821200) is greater than itself. Its abundance is 39323167440

Bases of 21213653760

• Binary: 10011110000011011101010101100000000₂
• Hexadecimal: 0x4F06EAB00
• Base-36: 9QU2800

Squares and roots of 21213653760

• 21213653760 squared (21213653760²) is 450019105849162137600
• 21213653760 cubed (21213653760³) is 9546549496868916373147877376000
• The square root of 21213653760 is 145649.0774430103
• The cube root of 21213653760 is 2768.2490448289

Scales and comparisons

• 21,213,653,760 seconds is equal to 674 years, 27 weeks, 3 days, 9 hours, 36 minutes.
• To count from 1 to 21,213,653,760 would take you about one thousand, three hundred forty-nine 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 21213653760 cubic inches would be around 230.7 feet tall.

Recreational maths with 21213653760

• 21213653760 backwards is 06735631212
• 21213653760 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21213653760's digits is 36
• More coming soon!