19890385920

Names of 19890385920

• Cardinal: 19890385920 can be written as Nineteen billion, eight hundred ninety million, three hundred eighty-five thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.989038592 × 10¹⁰

Factors of 19890385920

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 19
• Sum of prime factors: 83

Divisors of 19890385920

• Number of divisors d(n): 462
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 45 48 54 60 64 72 73 80 81 90 96 108 120 128 135 144 146 160 162 180 192 216 219 240 243 256 270 288 292 320 324 360 365 384 405 432 438 480 486 512 540 576 584 640 648 657 720 729 730 768 810 864 876 960 972 1024 1080 1095 1152 1168 1215 1280 1296 1314 1440 1458 1460 1536 1620 1728 1752 1920 1944 1971 2160 2190 2304 2336 2430 2560 2592 2628 2880 2916 2920 3072 3240 3285 3456 3504 3645 3840 3888 3942 4320 4380 4608 4672 4860 5120 5184 5256 5329 5760 5832 5840 5913 6480 6570 6912 7008 7290 7680 7776 7884 8640 8760 9216 9344 9720 9855 10368 10512 10658 11520 11664 11680 11826 12960 13140 13824 14016 14580 15360 15552 15768 15987 17280 17520 17739 18688 19440 19710 20736 21024 21316 23040 23328 23360 23652 25920 26280 26645 27648 28032 29160 29565 31104 31536 31974 34560 35040 35478 37376 38880 39420 41472 42048 42632 46080 46656 46720 47304 47961 51840 52560 53217 53290 56064 58320 59130 62208 63072 63948 69120 70080 70956 74752 77760 78840 79935 82944 84096 85264 88695 93312 93440 94608 95922 103680 105120 106434 106580 112128 116640 118260 124416 126144 127896 138240 140160 141912 143883 155520 157680 159870 168192 170528 177390 186624 186880 189216 191844 207360 210240 212868 213160 224256 233280 236520 239805 248832 252288 255792 266085 280320 283824 287766 311040 315360 319740 336384 341056 354780 373248 373760 378432 383688 414720 420480 425736 426320 431649 466560 473040 479610 504576 511584 532170 560640 567648 575532 622080 630720 639480 672768 682112 709560 719415 746496 756864 767376 840960 851472 852640 863298 933120 946080 959220 1009152 1023168 1064340 1121280 1135296 1151064 1244160 1261440 1278960 1294947 1364224 1419120 1438830 1513728 1534752 1681920 1702944 1705280 1726596 1866240 1892160 1918440 2018304 2046336 2128680 2158245 2270592 2302128 2522880 2557920 2589894 2728448 2838240 2877660 3027456 3069504 3363840 3405888 3410560 3453192 3732480 3784320 3836880 3884841 4092672 4257360 4316490 4541184 4604256 5045760 5115840 5179788 5456896 5676480 5755320 6054912 6139008 6474735 6811776 6821120 6906384 7568640 7673760 7769682 8185344 8514720 8632980 9082368 9208512 10091520 10231680 10359576 11352960 11510640 12278016 12949470 13623552 13642240 13812768 15137280 15347520 15539364 16370688 17029440 17265960 18164736 18417024 19424205 20463360 20719152 22705920 23021280 24556032 25898940 27247104 27284480 27625536 30274560 30695040 31078728 34058880 34531920 36834048 38848410 40926720 41438304 45411840 46042560 49112064 51797880 54494208 55251072 61390080 62157456 68117760 69063840 73668096 77696820 81853440 82876608 90823680 92085120 103595760 110502144 122780160 124314912 136235520 138127680 147336192 155393640 165753216 184170240 207191520 221004288 245560320 248629824 272471040 276255360 310787280 331506432 368340480 414383040 442008576 497259648 552510720 621574560 663012864 736680960 828766080 994519296 1105021440 1243149120 1326025728 1657532160 1989038592 2210042880 2486298240 3315064320 3978077184 4972596480 6630128640 9945192960 19890385920
• Sum of all divisors σ(n): 72531093078
• Sum of proper divisors (its aliquot sum) s(n): 52640707158
• 19890385920 is an abundant number, because the sum of its proper divisors (52640707158) is greater than itself. Its abundance is 32750321238

Bases of 19890385920

• Binary: 10010100001100011110011010000000000₂
• Hexadecimal: 0x4A18F3400
• Base-36: 94Y8000

Squares and roots of 19890385920

• 19890385920 squared (19890385920²) is 395627452046534246400
• 19890385920 cubed (19890385920³) is 7869182701751859959392370688000
• The square root of 19890385920 is 141033.2794768667
• The cube root of 19890385920 is 2709.4495561911

Scales and comparisons

• 19,890,385,920 seconds is equal to 632 years, 23 weeks, 3 days, 19 hours, 12 minutes.
• To count from 1 to 19,890,385,920 would take you about one thousand, two hundred sixty-four 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 19890385920 cubic inches would be around 225.8 feet tall.

Recreational maths with 19890385920

• 19890385920 backwards is 02958309891
• 19890385920 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 19890385920's digits is 54
• More coming soon!