1397986128

Names of 1397986128

• Cardinal: 1397986128 can be written as One billion, three hundred ninety-seven million, nine hundred eighty-six thousand, one hundred twenty-eight.

Scientific notation

• Scientific notation: 1.397986128 × 10⁹

Factors of 1397986128

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 14032

Divisors of 1397986128

• Number of divisors d(n): 200
• Complete list of divisors:
  1 2 3 4 6 7 8 9 11 12 14 16 18 21 22 24 27 28 33 36 42 44 48 54 56 63 66 72 77 81 84 88 99 108 112 126 132 144 154 162 168 176 189 198 216 231 252 264 297 308 324 336 378 396 432 462 504 528 567 594 616 648 693 756 792 891 924 1008 1134 1188 1232 1296 1386 1512 1584 1782 1848 2079 2268 2376 2772 3024 3564 3696 4158 4536 4752 5544 6237 7128 8316 9072 11088 12474 14009 14256 16632 24948 28018 33264 42027 49896 56036 84054 98063 99792 112072 126081 154099 168108 196126 224144 252162 294189 308198 336216 378243 392252 462297 504324 588378 616396 672432 756486 784504 882567 924594 1008648 1078693 1134729 1176756 1232792 1386891 1512972 1569008 1765134 1849188 2017296 2157386 2269458 2353512 2465584 2647701 2773782 3025944 3236079 3530268 3698376 4160673 4314772 4538916 4707024 5295402 5547564 6051888 6472158 7060536 7396752 7943103 8321346 8629544 9077832 9708237 10590804 11095128 12482019 12944316 14121072 15886206 16642692 17259088 18155664 19416474 21181608 22190256 24964038 25888632 29124711 31772412 33285384 38832948 42363216 49928076 51777264 58249422 63544824 66570768 77665896 87374133 99856152 116498844 127089648 155331792 174748266 199712304 232997688 349496532 465995376 698993064 1397986128
• Sum of all divisors σ(n): 5044944960
• Sum of proper divisors (its aliquot sum) s(n): 3646958832
• 1397986128 is an abundant number, because the sum of its proper divisors (3646958832) is greater than itself. Its abundance is 2248972704

Bases of 1397986128

• Binary: 1010011010100111001001101010000₂
• Hexadecimal: 0x53539350
• Base-36: N4BP00

Squares and roots of 1397986128

• 1397986128 squared (1397986128²) is 1954365214080432384
• 1397986128 cubed (1397986128³) is 2732175458330194749073969152
• The square root of 1397986128 is 37389.6526862713
• The cube root of 1397986128 is 1118.1522807837

Scales and comparisons

• 1,397,986,128 seconds is equal to 44 years, 23 weeks, 3 days, 9 hours, 28 minutes, 48 seconds.
• To count from 1 to 1,397,986,128 would take you about eighty-eight 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 1397986128 cubic inches would be around 93.2 feet tall.

Recreational maths with 1397986128

• 1397986128 backwards is 8216897931
• 1397986128 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 1397986128's digits is 54
• More coming soon!