139912890
139,912,890 is an even composite number composed of seven prime numbers multiplied together.
139912890 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 139912890:
2 × 3 × 5 × 13 × 17 × 47 × 449
See below for interesting mathematical facts about the number 139912890 from the Numbermatics database.
Names of 139912890
- Cardinal: 139912890 can be written as One hundred thirty-nine million, nine hundred twelve thousand, eight hundred ninety.
Scientific notation
- Scientific notation: 1.3991289 × 108
Factors of 139912890
Divisors of 139912890
- Number of divisors d(n): 128
-
Complete list of divisors:
1 2 3 5 6 10 13 15 17 26 30 34 39 47 51 65 78 85 94 102 130 141 170 195 221 235 255 282 390 442 449 470 510 611 663 705 799 898 1105 1222 1326 1347 1410 1598 1833 2210 2245 2397 2694 3055 3315 3666 3995 4490 4794 5837 6110 6630 6735 7633 7990 9165 10387 11674 11985 13470 15266 17511 18330 20774 21103 22899 23970 29185 31161 35022 38165 42206 45798 51935 58370 62322 63309 76330 87555 99229 103870 105515 114495 126618 155805 175110 198458 211030 228990 274339 297687 311610 316545 358751 496145 548678 595374 633090 717502 823017 992290 1076253 1371695 1488435 1646034 1793755 2152506 2743390 2976870 3587510 4115085 4663763 5381265 8230170 9327526 10762530 13991289 23318815 27982578 46637630 69956445 139912890
- Sum of all divisors σ(n): 391910400
- Sum of proper divisors (its aliquot sum) s(n): 251997510
- 139912890 is an abundant number, because the sum of its proper divisors (251997510) is greater than itself. Its abundance is 112084620
Bases of 139912890
- Binary: 10000101011011100110101110102
- Hexadecimal: 0x856E6BA
- Base-36: 2BATH6
Squares and roots of 139912890
- 139912890 squared (1399128902) is 19575616788152100
- 139912890 cubed (1399128903) is 2738881118362878070569000
-
The
square root of 139912890 is 11828.4779240611 -
The
cube root of 139912890 is 519.1416930407
Scales and comparisons
How big is 139912890?- 139,912,890 seconds is equal to 4 years, 23 weeks, 2 days, 8 hours, 41 minutes, 30 seconds.
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To count from 1 to 139,912,890 would take you about 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 139912890 cubic inches would be around 43.3 feet tall.
Recreational maths with 139912890
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