1155145728

Names of 1155145728

• Cardinal: 1155145728 can be written as One billion, one hundred fifty-five million, one hundred forty-five thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 1.155145728 × 10⁹

Factors of 1155145728

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 4289

Divisors of 1155145728

• Number of divisors d(n): 112
• Complete list of divisors:
  1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 64 66 88 96 128 132 176 192 256 264 352 384 512 528 704 768 1024 1056 1408 1536 2048 2112 2816 3072 4096 4224 4273 5632 6144 8192 8448 8546 11264 12288 12819 16896 17092 22528 24576 25638 33792 34184 45056 47003 51276 67584 68368 90112 94006 102552 135168 136736 141009 188012 205104 270336 273472 282018 376024 410208 546944 564036 752048 820416 1093888 1128072 1504096 1640832 2187776 2256144 3008192 3281664 4375552 4512288 6016384 6563328 8751104 9024576 12032768 13126656 17502208 18049152 24065536 26253312 35004416 36098304 48131072 52506624 72196608 96262144 105013248 144393216 192524288 288786432 385048576 577572864 1155145728
• Sum of all divisors σ(n): 3361005216
• Sum of proper divisors (its aliquot sum) s(n): 2205859488
• 1155145728 is an abundant number, because the sum of its proper divisors (2205859488) is greater than itself. Its abundance is 1050713760

Bases of 1155145728

• Binary: 1000100110110100010000000000000₂
• Hexadecimal: 0x44DA2000
• Base-36: J3QS5C

Squares and roots of 1155145728

• 1155145728 squared (1155145728²) is 1334361652916649984
• 1155145728 cubed (1155145728³) is 1541382162973686969088868352
• The square root of 1155145728 is 33987.4348546635
• The cube root of 1155145728 is 1049.2498733027

Scales and comparisons

• 1,155,145,728 seconds is equal to 36 years, 37 weeks, 6 days, 17 hours, 48 minutes, 48 seconds.
• To count from 1 to 1,155,145,728 would take you about seventy-three 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 1155145728 cubic inches would be around 87.4 feet tall.

Recreational maths with 1155145728

• 1155145728 backwards is 8275415511
• The number of decimal digits it has is: 10
• The sum of 1155145728's digits is 39
• More coming soon!