161438035391
161,438,035,391 is an odd composite number composed of five prime numbers multiplied together.
161438035391 is an odd composite number. It is composed of five distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 161438035391:
172 × 23 × 312 × 127 × 199
(17 × 17 × 23 × 31 × 31 × 127 × 199)See below for interesting mathematical facts about the number 161438035391 from the Numbermatics database.
Names of 161438035391
- Cardinal: 161438035391 can be written as One hundred sixty-one billion, four hundred thirty-eight million, thirty-five thousand, three hundred ninety-one.
Scientific notation
- Scientific notation: 1.61438035391 × 1011
Factors of 161438035391
Divisors of 161438035391
- Number of divisors d(n): 72
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Complete list of divisors:
1 17 23 31 127 199 289 391 527 713 961 2159 2921 3383 3937 4577 6169 6647 8959 12121 16337 22103 25273 36703 49657 57511 66929 77809 90551 104873 122047 141887 191239 206057 277729 375751 429641 581279 783463 844169 1137793 1322753 1539367 1782841 2074799 2412079 2807081 3251063 4398497 6387767 7303897 9881743 13318871 18019649 24287353 26169239 35271583 41005343 47720377 55268071 74774449 167989631 226420807 306334033 412885001 558609119 811246409 1271165633 5207678561 7019045017 9496355023 161438035391
- Sum of all divisors σ(n): 187300454400
- Sum of proper divisors (its aliquot sum) s(n): 25862419009
- 161438035391 is a deficient number, because the sum of its proper divisors (25862419009) is less than itself. Its deficiency is 135575616382
Bases of 161438035391
- Binary: 100101100101100111010011101101101111112
- Hexadecimal: 0x259674EDBF
- Base-36: 225W1DBZ
Squares and roots of 161438035391
- 161438035391 squared (1614380353912) is 26062239270905768522881
- 161438035391 cubed (1614380353913) is 4207436705785195495422916671281471
-
The
square root of 161438035391 is 401793.5233313249 -
The
cube root of 161438035391 is 5445.0510345793
Scales and comparisons
How big is 161438035391?- 161,438,035,391 seconds is equal to 5,133 years, 11 weeks, 6 days, 18 hours, 43 minutes, 11 seconds.
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To count from 1 to 161,438,035,391 would take you about ten thousand, two hundred sixty-six 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 161438035391 cubic inches would be around 453.8 feet tall.
Recreational maths with 161438035391
- 161438035391 backwards is 193530834161
- The number of decimal digits it has is: 12
- The sum of 161438035391's digits is 44
- More coming soon!
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