13072971915

Names of 13072971915

• Cardinal: 13072971915 can be written as Thirteen billion, seventy-two million, nine hundred seventy-one thousand, nine hundred fifteen.

Scientific notation

• Scientific notation: 1.3072971915 × 10¹⁰

Factors of 13072971915

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 426

Divisors of 13072971915

• Number of divisors d(n): 160
• Complete list of divisors:
  1 3 5 9 15 27 29 45 61 71 81 87 135 145 183 213 257 261 305 355 405 435 549 639 771 783 915 1065 1285 1305 1647 1769 1917 2059 2313 2349 2745 3195 3855 3915 4331 4941 5307 5751 6177 6939 7453 8235 8845 9585 10295 11565 11745 12993 15677 15921 18247 18531 20817 21655 22359 24705 26535 28755 30885 34695 37265 38979 47031 47763 54741 55593 64965 67077 78385 79605 91235 92655 104085 111795 116937 125599 141093 143289 164223 166779 194895 201231 235155 238815 273705 277965 335385 350811 376797 423279 454633 492669 529163 584685 603693 627995 705465 716445 821115 833895 1006155 1113067 1130391 1269837 1363899 1478007 1587489 1754055 1883985 2116395 2273165 2463345 2645815 3018465 3339201 3391173 4091697 4762467 5565335 5651955 6349185 6819495 7390035 7937445 10017603 10173519 12275091 14287401 16696005 16955865 20458485 23812335 30052809 32278943 36825273 42862203 50088015 50867595 61375455 71437005 90158427 96836829 150264045 161394715 184126365 214311015 290510487 450792135 484184145 871531461 1452552435 2614594383 4357657305 13072971915
• Sum of all divisors σ(n): 25084287360
• Sum of proper divisors (its aliquot sum) s(n): 12011315445
• 13072971915 is a deficient number, because the sum of its proper divisors (12011315445) is less than itself. Its deficiency is 1061656470

Bases of 13072971915

• Binary: 1100001011001101011011100010001011₂
• Hexadecimal: 0x30B35B88B
• Base-36: 607B5OR

Squares and roots of 13072971915

• 13072971915 squared (13072971915²) is 170902594690378767225
• 13072971915 cubed (13072971915³) is 2234204820587949744644747485875
• The square root of 13072971915 is 114337.0977198565
• The cube root of 13072971915 is 2355.7260044073

Scales and comparisons

• 13,072,971,915 seconds is equal to 415 years, 35 weeks, 2 days, 13 hours, 5 minutes, 15 seconds.
• To count from 1 to 13,072,971,915 would take you about eight hundred thirty-one 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 13072971915 cubic inches would be around 196.3 feet tall.

Recreational maths with 13072971915

• 13072971915 backwards is 51917927031
• 13072971915 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 13072971915's digits is 45
• More coming soon!