121991168
121,991,168 is an even composite number composed of four prime numbers multiplied together.
121991168 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred four divisors.
Prime factorization of 121991168:
212 × 13 × 29 × 79
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 13 × 29 × 79)See below for interesting mathematical facts about the number 121991168 from the Numbermatics database.
Names of 121991168
- Cardinal: 121991168 can be written as One hundred twenty-one million, nine hundred ninety-one thousand, one hundred sixty-eight.
Scientific notation
- Scientific notation: 1.21991168 × 108
Factors of 121991168
Divisors of 121991168
- Number of divisors d(n): 104
-
Complete list of divisors:
1 2 4 8 13 16 26 29 32 52 58 64 79 104 116 128 158 208 232 256 316 377 416 464 512 632 754 832 928 1024 1027 1264 1508 1664 1856 2048 2054 2291 2528 3016 3328 3712 4096 4108 4582 5056 6032 6656 7424 8216 9164 10112 12064 13312 14848 16432 18328 20224 24128 26624 29696 29783 32864 36656 40448 48256 53248 59392 59566 65728 73312 80896 96512 118784 119132 131456 146624 161792 193024 238264 262912 293248 323584 386048 476528 525824 586496 772096 953056 1051648 1172992 1544192 1906112 2103296 2345984 3812224 4206592 4691968 7624448 9383936 15248896 30497792 60995584 121991168
- Sum of all divisors σ(n): 275217600
- Sum of proper divisors (its aliquot sum) s(n): 153226432
- 121991168 is an abundant number, because the sum of its proper divisors (153226432) is greater than itself. Its abundance is 31235264
Bases of 121991168
- Binary: 1110100010101110000000000002
- Hexadecimal: 0x7457000
- Base-36: 20MOZK
Squares and roots of 121991168
- 121991168 squared (1219911682) is 14881845070004224
- 121991168 cubed (1219911683) is 1815453662084857050693632
-
The
square root of 121991168 is 11044.9612040965 -
The
cube root of 121991168 is 495.9555978289
Scales and comparisons
How big is 121991168?- 121,991,168 seconds is equal to 3 years, 45 weeks, 4 days, 22 hours, 26 minutes, 8 seconds.
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To count from 1 to 121,991,168 would take you about five 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 121991168 cubic inches would be around 41.3 feet tall.
Recreational maths with 121991168
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