18712744128

Names of 18712744128

• Cardinal: 18712744128 can be written as Eighteen billion, seven hundred twelve million, seven hundred forty-four thousand, one hundred twenty-eight.

Scientific notation

• Scientific notation: 1.8712744128 × 10¹⁰

Factors of 18712744128

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 803

Divisors of 18712744128

• Number of divisors d(n): 336
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 18 24 26 32 36 39 43 48 52 64 72 78 86 89 96 104 117 129 144 156 172 178 192 208 234 258 267 288 312 344 356 387 416 468 516 534 559 576 624 653 688 712 774 801 832 936 1032 1068 1118 1157 1248 1306 1376 1424 1548 1602 1677 1872 1959 2064 2136 2236 2314 2496 2612 2752 2848 3096 3204 3354 3471 3744 3827 3918 4128 4272 4472 4628 5031 5224 5696 5877 6192 6408 6708 6942 7488 7654 7836 8256 8489 8544 8944 9256 10062 10413 10448 11481 11754 12384 12816 13416 13884 15308 15672 16978 17088 17888 18512 20124 20826 20896 22962 23508 24768 25467 25632 26832 27768 28079 30616 31344 33956 34443 35776 37024 40248 41652 41792 45924 47016 49751 50934 51264 53664 55536 56158 58117 61232 62688 67912 68886 74048 76401 80496 83304 84237 91848 94032 99502 101868 107328 111072 112316 116234 122464 125376 135824 137772 149253 152802 160992 166608 168474 174351 183696 188064 199004 203736 222144 224632 232468 244928 252711 271648 275544 298506 305604 321984 333216 336948 348702 365027 367392 376128 398008 407472 447759 449264 464936 505422 523053 543296 551088 597012 611208 666432 673896 697404 730054 734784 755521 796016 814944 895518 898528 929872 1010844 1046106 1095081 1102176 1194024 1222416 1347792 1394808 1460108 1511042 1592032 1629888 1791036 1797056 1859744 2021688 2092212 2190162 2204352 2266563 2388048 2444832 2499031 2695584 2789616 2920216 3022084 3184064 3285243 3582072 3719488 4043376 4184424 4380324 4533126 4776096 4889664 4998062 5391168 5579232 5840432 6044168 6570486 6799689 7164144 7497093 8086752 8368848 8760648 9066252 9552192 9996124 11158464 11680864 12088336 13140972 13599378 14328288 14994186 16173504 16737696 17521296 18132504 19992248 22491279 23361728 24176672 26281944 27198756 28656576 29988372 32487403 33475392 35042592 36265008 39984496 44982558 48353344 52563888 54397512 59976744 64974806 70085184 72530016 79968992 89965116 97462209 105127776 108795024 119953488 129949612 145060032 159937984 179930232 194924418 210255552 217590048 239906976 259899224 292386627 359860464 389848836 435180096 479813952 519798448 584773254 719720928 779697672 1039596896 1169546508 1439441856 1559395344 2079193792 2339093016 3118790688 4678186032 6237581376 9356372064 18712744128
• Sum of all divisors σ(n): 59861561760
• Sum of proper divisors (its aliquot sum) s(n): 41148817632
• 18712744128 is an abundant number, because the sum of its proper divisors (41148817632) is greater than itself. Its abundance is 22436073504

Bases of 18712744128

• Binary: 10001011011010111011101000011000000₂
• Hexadecimal: 0x45B5DD0C0
• Base-36: 8LH31S0

Squares and roots of 18712744128

• 18712744128 squared (18712744128²) is 350166792799998480384
• 18712744128 cubed (18712744128³) is 6552581595788764242214619185152
• The square root of 18712744128 is 136794.5325223197
• The cube root of 18712744128 is 2654.8856886317

Scales and comparisons

• 18,712,744,128 seconds is equal to 595 years, 2 days, 16 hours, 28 minutes, 48 seconds.
• To count from 1 to 18,712,744,128 would take you about one thousand, one hundred ninety 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 18712744128 cubic inches would be around 221.2 feet tall.

Recreational maths with 18712744128

• 18712744128 backwards is 82144721781
• The number of decimal digits it has is: 11
• The sum of 18712744128's digits is 45
• More coming soon!