159993990
159,993,990 is an even composite number composed of six prime numbers multiplied together.
159993990 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 159993990:
2 × 32 × 5 × 132 × 67 × 157
(2 × 3 × 3 × 5 × 13 × 13 × 67 × 157)See below for interesting mathematical facts about the number 159993990 from the Numbermatics database.
Names of 159993990
- Cardinal: 159993990 can be written as One hundred fifty-nine million, nine hundred ninety-three thousand, nine hundred ninety.
Scientific notation
- Scientific notation: 1.5999399 × 108
Factors of 159993990
Divisors of 159993990
- Number of divisors d(n): 144
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Complete list of divisors:
1 2 3 5 6 9 10 13 15 18 26 30 39 45 65 67 78 90 117 130 134 157 169 195 201 234 314 335 338 390 402 471 507 585 603 670 785 845 871 942 1005 1014 1170 1206 1413 1521 1570 1690 1742 2010 2041 2355 2535 2613 2826 3015 3042 4082 4355 4710 5070 5226 6030 6123 7065 7605 7839 8710 10205 10519 11323 12246 13065 14130 15210 15678 18369 20410 21038 22646 26130 26533 30615 31557 33969 36738 39195 52595 53066 56615 61230 63114 67938 78390 79599 91845 94671 101907 105190 113230 132665 136747 157785 159198 169845 183690 189342 203814 238797 265330 273494 315570 339690 397995 410241 473355 477594 509535 683735 795990 820482 946710 1019070 1193985 1230723 1367470 1777711 2051205 2387970 2461446 3555422 4102410 5333133 6153615 8888555 10666266 12307230 15999399 17777110 26665665 31998798 53331330 79996995 159993990
- Sum of all divisors σ(n): 460079568
- Sum of proper divisors (its aliquot sum) s(n): 300085578
- 159993990 is an abundant number, because the sum of its proper divisors (300085578) is greater than itself. Its abundance is 140091588
Bases of 159993990
- Binary: 10011000100101010000100001102
- Hexadecimal: 0x9895086
- Base-36: 2N985I
Squares and roots of 159993990
- 159993990 squared (1599939902) is 25598076836120100
- 159993990 cubed (1599939903) is 4095538449337430918199000
-
The
square root of 159993990 is 12648.8730723333 -
The
cube root of 159993990 is 542.8767258797
Scales and comparisons
How big is 159993990?- 159,993,990 seconds is equal to 5 years, 4 weeks, 3 days, 18 hours, 46 minutes, 30 seconds.
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To count from 1 to 159,993,990 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 159993990 cubic inches would be around 45.2 feet tall.
Recreational maths with 159993990
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