72172583145

Names of 72172583145

• Cardinal: 72172583145 can be written as Seventy-two billion, one hundred seventy-two million, five hundred eighty-three thousand, one hundred forty-five.

Scientific notation

• Scientific notation: 7.2172583145 × 10¹⁰

Factors of 72172583145

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1589

Divisors of 72172583145

• Number of divisors d(n): 144
• Complete list of divisors:
  1 3 5 9 13 15 27 39 45 65 81 117 135 169 195 243 271 351 405 507 585 813 845 1053 1215 1297 1355 1521 1755 2439 2535 3159 3523 3891 4065 4563 5265 6485 7317 7605 10569 11673 12195 13689 15795 16861 17615 19455 21951 22815 31707 35019 36585 41067 45799 50583 52845 58365 65853 68445 84305 95121 105057 109755 137397 151749 158535 175095 205335 219193 228995 252915 285363 315171 329265 351487 412191 455247 475605 525285 657579 686985 758745 856089 1054461 1095965 1236573 1365741 1426815 1575855 1757435 1972737 2060955 2276235 3163383 3287895 3709719 4097223 4280445 4569331 5272305 5918211 6182865 6828705 9490149 9863685 11129157 13707993 15816915 17754633 18548595 20486115 22846655 28470447 29591055 41123979 47450745 53263899 55645785 59401303 68539965 85411341 88773165 123371937 142352235 178203909 205619895 266319495 297006515 370115811 427056705 534611727 616859685 891019545 1110347433 1603835181 1850579055 2673058635 4811505543 5551737165 8019175905 14434516629 24057527715 72172583145
• Sum of all divisors σ(n): 141106597632
• Sum of proper divisors (its aliquot sum) s(n): 68934014487
• 72172583145 is a deficient number, because the sum of its proper divisors (68934014487) is less than itself. Its deficiency is 3238568658

Bases of 72172583145

• Binary: 1000011001101110100100011100011101001₂
• Hexadecimal: 0x10CDD238E9
• Base-36: X5LOXK9

Squares and roots of 72172583145

• 72172583145 squared (72172583145²) is 5208881757821938091025
• 72172583145 cubed (72172583145³) is 375938451758877580979544390773625
• The square root of 72172583145 is 268649.5545222437
• The cube root of 72172583145 is 4163.4889512881

Scales and comparisons

• 72,172,583,145 seconds is equal to 2,294 years, 44 weeks, 6 days, 19 hours, 45 minutes, 45 seconds.
• To count from 1 to 72,172,583,145 would take you about four thousand, five hundred eighty-nine 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 72172583145 cubic inches would be around 347 feet tall.

Recreational maths with 72172583145

• 72172583145 backwards is 54138527127
• 72172583145 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 72172583145's digits is 45
• More coming soon!