21402123480

Names of 21402123480

• Cardinal: 21402123480 can be written as Twenty-one billion, four hundred two million, one hundred twenty-three thousand, four hundred eighty.

Scientific notation

• Scientific notation: 2.140212348 × 10¹⁰

Factors of 21402123480

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 1271

Divisors of 21402123480

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 17 18 20 24 27 30 31 34 36 40 45 51 54 60 62 68 72 85 90 93 102 108 120 124 135 136 153 155 170 180 186 204 216 248 255 270 279 306 310 340 360 372 408 459 465 510 527 540 558 612 620 680 744 765 837 918 930 961 1020 1054 1080 1116 1213 1224 1240 1395 1530 1581 1674 1836 1860 1922 2040 2108 2232 2295 2426 2635 2790 2883 3060 3162 3348 3639 3672 3720 3844 4185 4216 4590 4743 4805 4852 5270 5580 5766 6065 6120 6324 6696 7278 7688 7905 8370 8649 9180 9486 9610 9704 10540 10917 11160 11532 12130 12648 14229 14415 14556 15810 16337 16740 17298 18195 18360 18972 19220 20621 21080 21834 23064 23715 24260 25947 28458 28830 29112 31620 32674 32751 33480 34596 36390 37603 37944 38440 41242 43245 43668 47430 48520 49011 51894 54585 56916 57660 61863 63240 65348 65502 69192 71145 72780 75206 81685 82484 86490 87336 94860 98022 103105 103788 109170 112809 113832 115320 123726 129735 130696 131004 142290 145560 147033 150412 163370 163755 164968 172980 185589 188015 189720 196044 206210 207576 218340 225618 245055 247452 259470 262008 284580 294066 300824 309315 326740 327510 338427 345960 371178 376030 392088 412420 436680 441099 451236 490110 494904 518940 556767 564045 569160 588132 618630 639251 653480 655020 676854 735165 742356 752060 824840 882198 902472 927945 980220 1015281 1037880 1113534 1128090 1165693 1176264 1237260 1278502 1310040 1353708 1470330 1484712 1504120 1692135 1764396 1855890 1917753 1960440 2030562 2205495 2227068 2256180 2331386 2474520 2557004 2707416 2783835 2940660 3196255 3384270 3497079 3528792 3711780 3835506 4061124 4410990 4454136 4512360 4662772 5076405 5114008 5567670 5753259 5828465 5881320 6392510 6768540 6994158 7423560 7671012 8122248 8821980 9325544 9588765 10152810 10491237 11135340 11506518 11656930 12785020 13537080 13988316 15342024 17259777 17485395 17643960 19177530 19816781 20305620 20982474 22270680 23013036 23313860 25570040 27976632 28766295 31473711 34519554 34970790 38355060 39633562 40611240 41964948 46026072 46627720 52456185 57532590 59450343 62947422 69039108 69941580 76710120 79267124 83929896 86298885 99083905 104912370 115065180 118900686 125894844 138078216 139883160 157368555 158534248 172597770 178351029 198167810 209824740 230130360 237801372 251789688 297251715 314737110 345195540 356702058 396335620 419649480 475602744 535053087 594503430 629474220 690391080 713404116 792671240 891755145 1070106174 1189006860 1258948440 1426808232 1783510290 2140212348 2378013720 2675265435 3567020580 4280424696 5350530870 7134041160 10701061740 21402123480
• Sum of all divisors σ(n): 78116529600
• Sum of proper divisors (its aliquot sum) s(n): 56714406120
• 21402123480 is an abundant number, because the sum of its proper divisors (56714406120) is greater than itself. Its abundance is 35312282640

Bases of 21402123480

• Binary: 10011111011101010100111110011011000₂
• Hexadecimal: 0x4FBAA7CD8
• Base-36: 9TY9S60

Squares and roots of 21402123480

• 21402123480 squared (21402123480²) is 458050889453167310400
• 21402123480 cubed (21402123480³) is 9803261696200516454280288192000
• The square root of 21402123480 is 146294.6461084615
• The cube root of 21402123480 is 2776.4229254705

Scales and comparisons

• 21,402,123,480 seconds is equal to 680 years, 27 weeks, 18 hours, 18 minutes.
• To count from 1 to 21,402,123,480 would take you about one thousand, three hundred sixty-one 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 21402123480 cubic inches would be around 231.4 feet tall.

Recreational maths with 21402123480

• 21402123480 backwards is 08432120412
• 21402123480 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21402123480's digits is 27
• More coming soon!