1978009938975

Names of 1978009938975

• Cardinal: 1978009938975 can be written as One trillion, nine hundred seventy-eight billion, nine million, nine hundred thirty-eight thousand, nine hundred seventy-five.

Scientific notation

• Scientific notation: 1.978009938975 × 10¹²

Factors of 1978009938975

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 164

Divisors of 1978009938975

• Number of divisors d(n): 384
• Complete list of divisors:
  1 3 5 7 15 21 25 29 31 35 49 75 87 89 93 105 145 147 155 175 203 217 245 267 343 435 445 465 525 609 623 651 725 735 775 899 961 1015 1029 1085 1225 1335 1421 1519 1715 1869 2175 2225 2325 2581 2697 2759 2883 3045 3115 3255 3675 4263 4361 4495 4557 4805 5075 5145 5425 6293 6675 6727 7105 7595 7743 8277 8575 9345 9947 10633 12905 13083 13485 13795 14415 15225 15575 16275 18067 18879 19313 20181 21315 21805 22475 22785 24025 25725 27869 29791 29841 30527 31465 31899 33635 35525 37975 38715 41385 44051 46725 47089 49735 53165 54201 57939 64525 65415 67425 68975 72075 80011 83607 85529 89373 90335 91581 94395 96565 100905 106575 109025 113925 126469 132153 135191 139345 141267 148955 149205 152635 157325 159495 168175 193575 195083 206925 208537 220255 235445 240033 248675 256587 265825 271005 289695 308357 327075 329623 379407 400055 405573 418035 427645 446865 451675 457905 471975 482825 504525 560077 585249 598703 625611 632345 660765 675955 696725 706335 744775 746025 763175 797475 863939 885283 925071 946337 975415 988869 1042685 1101275 1177225 1200165 1282935 1355025 1365581 1448475 1459759 1541785 1648115 1680231 1796109 1897035 2000275 2027865 2090175 2138225 2234325 2289525 2480341 2591817 2651399 2655849 2800385 2839011 2926245 2993515 3128055 3161725 3303825 3379775 3531675 3920539 4096743 4190921 4319695 4379277 4426415 4625355 4731685 4877075 4944345 5213425 6000825 6047573 6414675 6827905 7298795 7441023 7708925 7954197 8240575 8401155 8980545 9485175 9559067 10139325 10218313 11761617 12401705 12572763 12959085 13256995 13279245 14001925 14195055 14631225 14967575 15640275 17362387 18142719 18559793 19602695 20483715 20954605 21598475 21896385 22132075 23126775 23658425 24721725 27443773 28677201 29336447 30237865 30654939 34139525 36493975 37205115 39770985 42005775 42333011 44902725 47795335 51091565 52087161 55679379 58808085 62008525 62863815 64795425 66284975 66396225 70975275 76890571 82331319 86811935 88009341 90713595 92798965 98013475 102418575 104773025 109481925 121536709 126999033 129918551 137218865 143386005 146682235 151189325 153274695 186025575 198854925 211665055 230671713 238976675 255457825 260435805 278396895 294040425 296331077 314319075 364610127 384452855 389755653 411656595 434059675 440046705 453567975 463994825 538233997 607683545 634995165 649592755 686094325 716930025 733411175 766373475 850756963 888993231 909429857 1058325275 1153358565 1302179025 1391984475 1481655385 1614701991 1823050635 1922264275 1948778265 2058282975 2200233525 2552270889 2691169985 2728289571 3038417725 3174975825 3247963775 3767637979 4253784815 4444966155 4547149285 5766792825 7408276925 8073509955 9115253175 9743891325 11302913937 12761354445 13455849925 13641447855 18838189895 21268924075 22224830775 22735746425 26373465853 40367549775 56514569685 63806772225 68207239275 79120397559 94190949475 131867329265 282572848425 395601987795 659336646325 1978009938975
• Sum of all divisors σ(n): 4122593280000
• Sum of proper divisors (its aliquot sum) s(n): 2144583341025
• 1978009938975 is an abundant number, because the sum of its proper divisors (2144583341025) is greater than itself. Its abundance is 166573402050

Bases of 1978009938975

• Binary: 11100110010001010100101000110110000011111₂
• Hexadecimal: 0x1CC8A946C1F
• Base-36: P8OO1OV3

Squares and roots of 1978009938975

• 1978009938975 squared (1978009938975²) is 3912523318683883224050625
• 1978009938975 cubed (1978009938975³) is 7739010010828172333320403008560609375
• The square root of 1978009938975 is 1406417.4127814971
• The cube root of 1978009938975 is 12552.8639865619

Scales and comparisons

• 1,978,009,938,975 seconds is equal to 62,894 years, 31 weeks, 13 hours, 16 minutes, 15 seconds.
• To count from 1 to 1,978,009,938,975 would take you about one hundred fifty-seven thousand, two hundred thirty-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 1978009938975 cubic inches would be around 1046.1 feet tall.

Recreational maths with 1978009938975

• 1978009938975 backwards is 5798399008791
• 1978009938975 is a Harshad number.
• The number of decimal digits it has is: 13
• The sum of 1978009938975's digits is 75
• More coming soon!