155705130
155,705,130 is an even composite number composed of six prime numbers multiplied together.
155705130 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 155705130:
2 × 32 × 5 × 7 × 592 × 71
(2 × 3 × 3 × 5 × 7 × 59 × 59 × 71)See below for interesting mathematical facts about the number 155705130 from the Numbermatics database.
Names of 155705130
- Cardinal: 155705130 can be written as One hundred fifty-five million, seven hundred five thousand, one hundred thirty.
Scientific notation
- Scientific notation: 1.5570513 × 108
Factors of 155705130
Divisors of 155705130
- Number of divisors d(n): 144
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Complete list of divisors:
1 2 3 5 6 7 9 10 14 15 18 21 30 35 42 45 59 63 70 71 90 105 118 126 142 177 210 213 295 315 354 355 413 426 497 531 590 630 639 710 826 885 994 1062 1065 1239 1278 1491 1770 2065 2130 2478 2485 2655 2982 3195 3481 3717 4130 4189 4473 4970 5310 6195 6390 6962 7434 7455 8378 8946 10443 12390 12567 14910 17405 18585 20886 20945 22365 24367 25134 29323 31329 34810 37170 37701 41890 44730 48734 52215 58646 62658 62835 73101 75402 87969 104430 121835 125670 146202 146615 156645 175938 188505 219303 243670 247151 263907 293230 313290 365505 377010 438606 439845 494302 527814 731010 741453 879690 1096515 1235755 1319535 1482906 1730057 2193030 2224359 2471510 2639070 3460114 3707265 4448718 5190171 7414530 8650285 10380342 11121795 15570513 17300570 22243590 25950855 31141026 51901710 77852565 155705130
- Sum of all divisors σ(n): 477270144
- Sum of proper divisors (its aliquot sum) s(n): 321565014
- 155705130 is an abundant number, because the sum of its proper divisors (321565014) is greater than itself. Its abundance is 165859884
Bases of 155705130
- Binary: 10010100011111011111001010102
- Hexadecimal: 0x947DF2A
- Base-36: 2KPAUI
Squares and roots of 155705130
- 155705130 squared (1557051302) is 24244087508316900
- 155705130 cubed (1557051303) is 3774928797213858995697000
-
The
square root of 155705130 is 12478.1861662665 -
The
cube root of 155705130 is 537.9818703785
Scales and comparisons
How big is 155705130?- 155,705,130 seconds is equal to 4 years, 49 weeks, 3 days, 3 hours, 25 minutes, 30 seconds.
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To count from 1 to 155,705,130 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 155705130 cubic inches would be around 44.8 feet tall.
Recreational maths with 155705130
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