31481391825

Names of 31481391825

• Cardinal: 31481391825 can be written as Thirty-one billion, four hundred eighty-one million, three hundred ninety-one thousand, eight hundred twenty-five.

Scientific notation

• Scientific notation: 3.1481391825 × 10¹⁰

Factors of 31481391825

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 242

Divisors of 31481391825

• Number of divisors d(n): 288
• Complete list of divisors:
  1 3 5 9 13 15 25 27 39 41 45 53 65 75 117 123 127 135 159 169 195 205 225 265 325 351 369 381 477 507 533 585 615 635 675 689 795 845 975 1025 1107 1143 1325 1431 1521 1599 1651 1755 1845 1905 2067 2173 2385 2535 2665 2925 3075 3175 3429 3445 3975 4225 4563 4797 4953 5207 5535 5715 6201 6519 6731 6929 7155 7605 7995 8255 8775 8957 9225 9525 10335 10865 11925 12675 13325 14391 14859 15621 17145 17225 18603 19557 20193 20787 21463 22815 23985 24765 26035 26871 27675 28249 28575 31005 32595 33655 34645 35775 38025 39975 41275 44577 44785 46863 51675 54325 58671 60579 62361 64389 67691 71955 74295 78105 80613 84747 85725 87503 93015 97785 100965 103935 107315 114075 119925 123825 130175 134355 140589 141245 155025 162975 168275 173225 181737 187083 193167 203073 222885 223925 234315 241839 254241 262509 275971 293355 302895 311805 321945 338455 359775 367237 371475 390525 403065 423735 437515 465075 488925 504825 519675 536575 579501 609219 671775 702945 706225 762723 787527 827913 879983 908685 935415 965835 1015365 1101711 1114425 1137539 1171575 1209195 1271205 1312545 1379855 1466775 1514475 1559025 1609725 1692275 1827657 1836185 2015325 2118675 2187575 2362581 2483739 2639949 2897505 3046095 3305133 3412617 3514725 3587623 3813615 3937635 4139565 4399915 4543425 4677075 4829175 5076825 5508555 5687695 6045975 6356025 6562725 6899275 7451217 7919847 9138285 9180925 9915399 10237851 10762869 11812905 12418695 13199745 14487525 15230475 16525665 17063085 17938115 19068075 19688175 20697825 21999575 23759541 27542775 28438475 30713553 32288607 37256085 39599235 45691425 46639099 49576995 51189255 53814345 59064525 62093475 65998725 82628325 85315425 89690575 96865821 118797705 139917297 153567765 161443035 186280425 197996175 233195495 247884975 255946275 269071725 419751891 484329105 593988525 699586485 767838825 807215175 1165977475 1259255673 2098759455 2421645525 3497932425 6296278365 10493797275 31481391825
• Sum of all divisors σ(n): 65875783680
• Sum of proper divisors (its aliquot sum) s(n): 34394391855
• 31481391825 is an abundant number, because the sum of its proper divisors (34394391855) is greater than itself. Its abundance is 2913000030

Bases of 31481391825

• Binary: 11101010100011011111110101011010001₂
• Hexadecimal: 0x7546FEAD1
• Base-36: EGN7HE9

Squares and roots of 31481391825

• 31481391825 squared (31481391825²) is 991078031239176830625
• 31481391825 cubed (31481391825³) is 31200515830590116095367284640625
• The square root of 31481391825 is 177429.9631544797
• The cube root of 31481391825 is 3157.5577931321

Scales and comparisons

• 31,481,391,825 seconds is equal to 1,001 years, 3 days, 23 hours, 3 minutes, 45 seconds.
• To count from 1 to 31,481,391,825 would take you about two thousand and two 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 31481391825 cubic inches would be around 263.1 feet tall.

Recreational maths with 31481391825

• 31481391825 backwards is 52819318413
• 31481391825 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 31481391825's digits is 45
• More coming soon!