161436990
161,436,990 is an even composite number composed of six prime numbers multiplied together.
161436990 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 161436990:
2 × 3 × 5 × 113 × 13 × 311
(2 × 3 × 5 × 11 × 11 × 11 × 13 × 311)See below for interesting mathematical facts about the number 161436990 from the Numbermatics database.
Names of 161436990
- Cardinal: 161436990 can be written as One hundred sixty-one million, four hundred thirty-six thousand, nine hundred ninety.
Scientific notation
- Scientific notation: 1.6143699 × 108
Factors of 161436990
Divisors of 161436990
- Number of divisors d(n): 128
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Complete list of divisors:
1 2 3 5 6 10 11 13 15 22 26 30 33 39 55 65 66 78 110 121 130 143 165 195 242 286 311 330 363 390 429 605 622 715 726 858 933 1210 1331 1430 1555 1573 1815 1866 2145 2662 3110 3146 3421 3630 3993 4043 4290 4665 4719 6655 6842 7865 7986 8086 9330 9438 10263 12129 13310 15730 17105 17303 19965 20215 20526 23595 24258 34210 34606 37631 39930 40430 44473 47190 51315 51909 60645 75262 86515 88946 102630 103818 112893 121290 133419 173030 188155 222365 225786 259545 266838 376310 413941 444730 489203 519090 564465 667095 827882 978406 1128930 1241823 1334190 1467609 2069705 2446015 2483646 2935218 4139410 4892030 5381233 6209115 7338045 10762466 12418230 14676090 16143699 26906165 32287398 53812330 80718495 161436990
- Sum of all divisors σ(n): 460422144
- Sum of proper divisors (its aliquot sum) s(n): 298985154
- 161436990 is an abundant number, because the sum of its proper divisors (298985154) is greater than itself. Its abundance is 137548164
Bases of 161436990
- Binary: 10011001111101010101001111102
- Hexadecimal: 0x99F553E
- Base-36: 2O45KU
Squares and roots of 161436990
- 161436990 squared (1614369902) is 26061901740260100
- 161436990 cubed (1614369903) is 4207354970623352361099000
-
The
square root of 161436990 is 12705.7856899917 -
The
cube root of 161436990 is 544.5039281423
Scales and comparisons
How big is 161436990?- 161,436,990 seconds is equal to 5 years, 6 weeks, 6 days, 11 hours, 36 minutes, 30 seconds.
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To count from 1 to 161,436,990 would take you about seven 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 161436990 cubic inches would be around 45.4 feet tall.
Recreational maths with 161436990
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