161389930
161,389,930 is an even composite number composed of six prime numbers multiplied together.
161389930 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 161389930:
2 × 5 × 132 × 29 × 37 × 89
(2 × 5 × 13 × 13 × 29 × 37 × 89)See below for interesting mathematical facts about the number 161389930 from the Numbermatics database.
Names of 161389930
- Cardinal: 161389930 can be written as One hundred sixty-one million, three hundred eighty-nine thousand, nine hundred thirty.
Scientific notation
- Scientific notation: 1.6138993 × 108
Factors of 161389930
Divisors of 161389930
- Number of divisors d(n): 96
-
Complete list of divisors:
1 2 5 10 13 26 29 37 58 65 74 89 130 145 169 178 185 290 338 370 377 445 481 754 845 890 962 1073 1157 1690 1885 2146 2314 2405 2581 3293 3770 4810 4901 5162 5365 5785 6253 6586 9802 10730 11570 12506 12905 13949 15041 16465 24505 25810 27898 30082 31265 32930 33553 42809 49010 62530 67106 69745 75205 85618 95497 139490 150410 167765 181337 190994 214045 335530 362674 428090 436189 477485 556517 872378 906685 954970 1113034 1241461 1813370 2180945 2482922 2782585 4361890 5565170 6207305 12414610 16138993 32277986 80694965 161389930
- Sum of all divisors σ(n): 337964400
- Sum of proper divisors (its aliquot sum) s(n): 176574470
- 161389930 is an abundant number, because the sum of its proper divisors (176574470) is greater than itself. Its abundance is 15184540
Bases of 161389930
- Binary: 10011001111010011101011010102
- Hexadecimal: 0x99E9D6A
- Base-36: 2O359M
Squares and roots of 161389930
- 161389930 squared (1613899302) is 26046709505404900
- 161389930 cubed (1613899303) is 4203676623807631432657000
-
The
square root of 161389930 is 12703.9336427739 -
The
cube root of 161389930 is 544.4510141123
Scales and comparisons
How big is 161389930?- 161,389,930 seconds is equal to 5 years, 6 weeks, 5 days, 22 hours, 32 minutes, 10 seconds.
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To count from 1 to 161,389,930 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 161389930 cubic inches would be around 45.4 feet tall.
Recreational maths with 161389930
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