138909302784

Names of 138909302784

• Cardinal: 138909302784 can be written as One hundred thirty-eight billion, nine hundred nine million, three hundred two thousand, seven hundred eighty-four.

Scientific notation

• Scientific notation: 1.38909302784 × 10¹¹

Factors of 138909302784

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 21
• Sum of prime factors: 818

Divisors of 138909302784

• Number of divisors d(n): 600
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 19 21 24 27 28 32 36 38 42 48 54 56 57 63 64 72 76 81 84 96 108 112 114 126 128 133 144 152 162 168 171 189 192 216 224 228 252 256 266 288 304 324 336 342 378 384 399 432 448 456 504 512 513 532 567 576 608 648 672 684 756 768 787 798 864 896 912 1008 1024 1026 1064 1134 1152 1197 1216 1296 1344 1368 1512 1536 1539 1574 1596 1728 1792 1824 2016 2048 2052 2128 2268 2304 2361 2394 2432 2592 2688 2736 3024 3072 3078 3148 3192 3456 3584 3591 3648 4032 4096 4104 4256 4536 4608 4722 4788 4864 5184 5376 5472 5509 6048 6144 6156 6296 6384 6912 7083 7168 7182 7296 8064 8192 8208 8512 9072 9216 9444 9576 9728 10368 10752 10773 10944 11018 12096 12288 12312 12592 12768 13824 14166 14336 14364 14592 14953 16128 16384 16416 16527 17024 18144 18432 18888 19152 19456 20736 21249 21504 21546 21888 22036 24192 24576 24624 25184 25536 27648 28332 28672 28728 29184 29906 32256 32832 33054 34048 36288 36864 37776 38304 38912 41472 42498 43008 43092 43776 44072 44859 48384 49152 49248 49581 50368 51072 55296 56664 57344 57456 58368 59812 63747 64512 65664 66108 68096 72576 73728 75552 76608 77824 82944 84996 86016 86184 87552 88144 89718 96768 98496 99162 100736 102144 104671 110592 113328 114688 114912 116736 119624 127494 129024 131328 132216 134577 136192 145152 147456 148743 151104 153216 155648 165888 169992 172032 172368 175104 176288 179436 193536 196992 198324 201472 204288 209342 221184 226656 229824 233472 239248 254988 258048 262656 264432 269154 272384 290304 297486 302208 306432 311296 314013 331776 339984 344064 344736 350208 352576 358872 387072 393984 396648 402944 403731 408576 418684 442368 446229 453312 459648 466944 478496 509976 516096 525312 528864 538308 544768 580608 594972 604416 612864 628026 663552 679968 689472 700416 705152 717744 774144 787968 793296 805888 807462 817152 837368 892458 906624 919296 933888 942039 956992 1019952 1032192 1050624 1057728 1076616 1089536 1161216 1189944 1208832 1211193 1225728 1256052 1327104 1359936 1378944 1400832 1410304 1435488 1548288 1575936 1586592 1611776 1614924 1634304 1674736 1784916 1813248 1838592 1884078 1913984 2039904 2101248 2115456 2153232 2179072 2322432 2379888 2417664 2422386 2451456 2512104 2719872 2757888 2801664 2820608 2826117 2870976 3096576 3151872 3173184 3223552 3229848 3268608 3349472 3569832 3626496 3677184 3768156 3827968 4079808 4202496 4230912 4306464 4644864 4759776 4835328 4844772 4902912 5024208 5439744 5515776 5641216 5652234 5741952 6303744 6346368 6447104 6459696 6537216 6698944 7139664 7252992 7354368 7536312 7655936 8159616 8404992 8461824 8478351 8612928 9289728 9519552 9670656 9689544 9805824 10048416 10879488 11031552 11282432 11304468 11483904 12607488 12692736 12894208 12919392 13397888 14279328 14505984 14708736 15072624 15311872 16319232 16923648 16956702 17225856 19039104 19341312 19379088 19611648 20096832 21758976 22063104 22564864 22608936 22967808 25214976 25385472 25838784 26795776 28558656 29011968 29417472 30145248 30623744 32638464 33847296 33913404 34451712 38078208 38682624 38758176 40193664 43517952 44126208 45129728 45217872 45935616 50770944 51677568 53591552 57117312 58023936 58834944 60290496 61247488 65276928 67694592 67826808 68903424 76156416 77516352 80387328 87035904 88252416 90259456 90435744 91871232 101541888 103355136 107183104 114234624 116047872 120580992 122494976 130553856 135389184 135653616 137806848 152312832 155032704 160774656 174071808 176504832 180871488 183742464 203083776 206710272 214366208 228469248 241161984 244989952 261107712 270778368 271307232 275613696 304625664 310065408 321549312 348143616 361742976 367484928 406167552 413420544 428732416 456938496 482323968 522215424 542614464 551227392 609251328 620130816 643098624 723485952 734969856 812335104 826841088 857464832 913876992 964647936 1044430848 1085228928 1102454784 1218502656 1240261632 1286197248 1446971904 1653682176 1714929664 1827753984 1929295872 2170457856 2204909568 2437005312 2480523264 2572394496 2893943808 3307364352 3655507968 3858591744 4340915712 4961046528 5144788992 5787887616 6614728704 7311015936 7717183488 8681831424 9922093056 11575775232 15434366976 17363662848 19844186112 23151550464 34727325696 46303100928 69454651392 138909302784
• Sum of all divisors σ(n): 499882866560
• Sum of proper divisors (its aliquot sum) s(n): 360973563776
• 138909302784 is an abundant number, because the sum of its proper divisors (360973563776) is greater than itself. Its abundance is 222064260992

Bases of 138909302784

• Binary: 10000001010111101000111100000000000000₂
• Hexadecimal: 0x2057A3C000
• Base-36: 1RTB0G00

Squares and roots of 138909302784

• 138909302784 squared (138909302784²) is 19295794399936990150656
• 138909302784 cubed (138909302784³) is 2680365346758658955359100080226304
• The square root of 138909302784 is 372705.3833579547
• The cube root of 138909302784 is 5178.9745537007

Scales and comparisons

• 138,909,302,784 seconds is equal to 4,416 years, 46 weeks, 13 hours, 26 minutes, 24 seconds.
• To count from 1 to 138,909,302,784 would take you about eight thousand, eight hundred thirty-three 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 138909302784 cubic inches would be around 431.6 feet tall.

Recreational maths with 138909302784

• 138909302784 backwards is 487203909831
• 138909302784 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 138909302784's digits is 54
• More coming soon!