813772128

Names of 813772128

• Cardinal: 813772128 can be written as Eight hundred thirteen million, seven hundred seventy-two thousand, one hundred twenty-eight.

Scientific notation

• Scientific notation: 8.13772128 × 10⁸

Factors of 813772128

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 34356

Divisors of 813772128

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 6 8 12 13 16 19 24 26 32 38 39 48 52 57 76 78 96 104 114 152 156 208 228 247 304 312 416 456 494 608 624 741 912 988 1248 1482 1824 1976 2964 3952 5928 7904 11856 23712 34319 68638 102957 137276 205914 274552 411828 446147 549104 652061 823656 892294 1098208 1304122 1338441 1647312 1784588 1956183 2608244 2676882 3294624 3569176 3912366 5216488 5353764 7138352 7824732 8476793 10432976 10707528 14276704 15649464 16953586 20865952 21415056 25430379 31298928 33907172 42830112 50860758 62597856 67814344 101721516 135628688 203443032 271257376 406886064 813772128
• Sum of all divisors σ(n): 2421619200
• Sum of proper divisors (its aliquot sum) s(n): 1607847072
• 813772128 is an abundant number, because the sum of its proper divisors (1607847072) is greater than itself. Its abundance is 794074944

Bases of 813772128

• Binary: 110000100000010010110101100000₂
• Hexadecimal: 0x30812D60
• Base-36: DGHYLC

Squares and roots of 813772128

• 813772128 squared (813772128²) is 662225076309648384
• 813772128 cubed (813772128³) is 538900309563464952379441152
• The square root of 813772128 is 28526.6915011187
• The cube root of 813772128 is 933.6145334105

Scales and comparisons

• 813,772,128 seconds is equal to 25 years, 45 weeks, 3 days, 15 hours, 48 minutes, 48 seconds.
• To count from 1 to 813,772,128 would take you about thirty-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 813772128 cubic inches would be around 77.8 feet tall.

Recreational maths with 813772128

• 813772128 backwards is 821277318
• 813772128 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 813772128's digits is 39
• More coming soon!