30687409872

Names of 30687409872

• Cardinal: 30687409872 can be written as Thirty billion, six hundred eighty-seven million, four hundred nine thousand, eight hundred seventy-two.

Scientific notation

• Scientific notation: 3.0687409872 × 10¹⁰

Factors of 30687409872

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 91472

Divisors of 30687409872

• Number of divisors d(n): 200
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 36 37 42 48 54 56 63 72 74 81 84 108 111 112 126 144 148 162 168 189 216 222 252 259 296 324 333 336 378 432 444 504 518 567 592 648 666 756 777 888 999 1008 1036 1134 1296 1332 1512 1554 1776 1998 2072 2268 2331 2664 2997 3024 3108 3996 4144 4536 4662 5328 5994 6216 6993 7992 9072 9324 11988 12432 13986 15984 18648 20979 23976 27972 37296 41958 47952 55944 83916 91423 111888 167832 182846 274269 335664 365692 548538 639961 731384 822807 1097076 1279922 1462768 1645614 1919883 2194152 2468421 2559844 3291228 3382651 3839766 4388304 4936842 5119688 5759649 6582456 6765302 7405263 7679532 9873684 10147953 10239376 11519298 13164912 13530604 14810526 15359064 17278947 19747368 20295906 23038596 23678557 27061208 29621052 30443859 30718128 34557894 39494736 40591812 46077192 47357114 51836841 54122416 59242104 60887718 69115788 71035671 81183624 91331577 92154384 94714228 103673682 118484208 121775436 138231576 142071342 162367248 182663154 189428456 207347364 213107013 243550872 273994731 276463152 284142684 365326308 378856912 414694728 426214026 487101744 547989462 568285368 639321039 730652616 829389456 852428052 1095978924 1136570736 1278642078 1461305232 1704856104 1917963117 2191957848 2557284156 3409712208 3835926234 4383915696 5114568312 7671852468 10229136624 15343704936 30687409872
• Sum of all divisors σ(n): 104251152896
• Sum of proper divisors (its aliquot sum) s(n): 73563743024
• 30687409872 is an abundant number, because the sum of its proper divisors (73563743024) is greater than itself. Its abundance is 42876333152

Bases of 30687409872

• Binary: 11100100101000111001011011011010000₂
• Hexadecimal: 0x7251CB6D0
• Base-36: E3IHP00

Squares and roots of 30687409872

• 30687409872 squared (30687409872²) is 941717124652123056384
• 30687409872 cubed (30687409872³) is 28898859387681015646237174222848
• The square root of 30687409872 is 175178.2231671505
• The cube root of 30687409872 is 3130.7862033707

Scales and comparisons

• 30,687,409,872 seconds is equal to 975 years, 39 weeks, 5 days, 8 hours, 31 minutes, 12 seconds.
• To count from 1 to 30,687,409,872 would take you about one thousand, nine hundred fifty-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 30687409872 cubic inches would be around 260.9 feet tall.

Recreational maths with 30687409872

• 30687409872 backwards is 27890478603
• 30687409872 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 30687409872's digits is 54
• More coming soon!