18974430720

Names of 18974430720

• Cardinal: 18974430720 can be written as Eighteen billion, nine hundred seventy-four million, four hundred thirty thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 1.897443072 × 10¹⁰

Factors of 18974430720

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 19
• Sum of prime factors: 17

Divisors of 18974430720

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 28 30 32 35 36 40 42 45 48 49 56 60 63 64 70 72 80 84 90 96 98 105 112 120 126 128 140 144 147 160 168 180 192 196 210 224 240 245 252 256 280 288 294 315 320 336 343 360 384 392 420 441 448 480 490 504 512 560 576 588 630 640 672 686 720 735 768 784 840 882 896 960 980 1008 1029 1120 1152 1176 1260 1280 1344 1372 1440 1470 1536 1568 1680 1715 1764 1792 1920 1960 2016 2058 2205 2240 2304 2352 2401 2520 2560 2688 2744 2880 2940 3087 3136 3360 3430 3528 3584 3840 3920 4032 4116 4410 4480 4608 4704 4802 5040 5145 5376 5488 5760 5880 6174 6272 6720 6860 7056 7203 7680 7840 8064 8232 8820 8960 9408 9604 10080 10290 10752 10976 11520 11760 12005 12348 12544 13440 13720 14112 14406 15435 15680 16128 16464 16807 17640 17920 18816 19208 20160 20580 21609 21952 23040 23520 24010 24696 25088 26880 27440 28224 28812 30870 31360 32256 32928 33614 35280 36015 37632 38416 40320 41160 43218 43904 47040 48020 49392 50421 53760 54880 56448 57624 61740 62720 65856 67228 70560 72030 75264 76832 80640 82320 84035 86436 87808 94080 96040 98784 100842 108045 109760 112896 115248 117649 123480 125440 131712 134456 141120 144060 151263 153664 161280 164640 168070 172872 175616 188160 192080 197568 201684 216090 219520 225792 230496 235298 246960 252105 263424 268912 282240 288120 302526 307328 329280 336140 345744 352947 376320 384160 395136 403368 432180 439040 460992 470596 493920 504210 526848 537824 564480 576240 588245 605052 614656 658560 672280 691488 705894 756315 768320 790272 806736 823543 864360 878080 921984 941192 987840 1008420 1058841 1075648 1128960 1152480 1176490 1210104 1229312 1317120 1344560 1382976 1411788 1512630 1536640 1580544 1613472 1647086 1728720 1764735 1843968 1882384 1975680 2016840 2117682 2151296 2304960 2352980 2420208 2470629 2634240 2689120 2765952 2823576 3025260 3073280 3226944 3294172 3457440 3529470 3687936 3764768 3951360 4033680 4117715 4235364 4302592 4609920 4705960 4840416 4941258 5294205 5378240 5531904 5647152 6050520 6146560 6453888 6588344 6914880 7058940 7411887 7529536 7902720 8067360 8235430 8470728 8605184 9219840 9411920 9680832 9882516 10588410 10756480 11063808 11294304 12101040 12353145 12907776 13176688 13829760 14117880 14823774 15059072 16134720 16470860 16941456 18439680 18823840 19361664 19765032 21176820 21512960 22588608 24202080 24706290 25815552 26353376 27659520 28235760 29647548 30118144 32269440 32941720 33882912 37059435 37647680 38723328 39530064 42353640 43025920 45177216 48404160 49412580 52706752 55319040 56471520 59295096 60236288 64538880 65883440 67765824 74118870 75295360 77446656 79060128 84707280 90354432 96808320 98825160 105413504 112943040 118590192 129077760 131766880 135531648 148237740 150590720 158120256 169414560 180708864 193616640 197650320 210827008 225886080 237180384 263533760 271063296 296475480 301181440 316240512 338829120 387233280 395300640 421654016 451772160 474360768 527067520 542126592 592950960 632481024 677658240 790601280 903544320 948721536 1054135040 1185901920 1264962048 1355316480 1581202560 1897443072 2108270080 2371803840 2710632960 3162405120 3794886144 4743607680 6324810240 9487215360 18974430720
• Sum of all divisors σ(n): 76666075200
• Sum of proper divisors (its aliquot sum) s(n): 57691644480
• 18974430720 is an abundant number, because the sum of its proper divisors (57691644480) is greater than itself. Its abundance is 38717213760

Bases of 18974430720

• Binary: 10001101010111101101101011000000000₂
• Hexadecimal: 0x46AF6D600
• Base-36: 8PSVWG0

Squares and roots of 18974430720

• 18974430720 squared (18974430720²) is 360029021148079718400
• 18974430720 cubed (18974430720³) is 6831345718963653477817909248000
• The square root of 18974430720 is 137747.7067685703
• The cube root of 18974430720 is 2667.2041094537

Scales and comparisons

• 18,974,430,720 seconds is equal to 603 years, 17 weeks, 11 hours, 12 minutes.
• To count from 1 to 18,974,430,720 would take you about one thousand, two hundred six 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 18974430720 cubic inches would be around 222.3 feet tall.

Recreational maths with 18974430720

• 18974430720 backwards is 02703447981
• 18974430720 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18974430720's digits is 45
• More coming soon!