138857928
138,857,928 is an even composite number composed of six prime numbers multiplied together.
138857928 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred ninety-two divisors.
Prime factorization of 138857928:
23 × 3 × 11 × 192 × 31 × 47
(2 × 2 × 2 × 3 × 11 × 19 × 19 × 31 × 47)See below for interesting mathematical facts about the number 138857928 from the Numbermatics database.
Names of 138857928
- Cardinal: 138857928 can be written as One hundred thirty-eight million, eight hundred fifty-seven thousand, nine hundred twenty-eight.
Scientific notation
- Scientific notation: 1.38857928 × 108
Factors of 138857928
Divisors of 138857928
- Number of divisors d(n): 192
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Complete list of divisors:
1 2 3 4 6 8 11 12 19 22 24 31 33 38 44 47 57 62 66 76 88 93 94 114 124 132 141 152 186 188 209 228 248 264 282 341 361 372 376 418 456 517 564 589 627 682 722 744 836 893 1023 1034 1083 1128 1178 1254 1364 1444 1457 1551 1672 1767 1786 2046 2068 2166 2356 2508 2679 2728 2888 2914 3102 3534 3572 3971 4092 4136 4332 4371 4712 5016 5358 5828 6204 6479 7068 7144 7942 8184 8664 8742 9823 10716 11191 11656 11913 12408 12958 14136 15884 16027 16967 17484 19437 19646 21432 22382 23826 25916 27683 29469 31768 32054 33573 33934 34968 38874 39292 44764 47652 48081 50901 51832 55366 58938 64108 67146 67868 77748 78584 83049 89528 95304 96162 101802 110732 117876 123101 128216 134292 135736 155496 166098 186637 192324 203604 221464 235752 246202 268584 304513 332196 369303 373274 384648 407208 492404 525977 559911 609026 664392 738606 746548 913539 984808 1051954 1119822 1218052 1477212 1493096 1577931 1827078 2103908 2239644 2436104 2954424 3155862 3654156 4207816 4479288 5785747 6311724 7308312 11571494 12623448 17357241 23142988 34714482 46285976 69428964 138857928
- Sum of all divisors σ(n): 421355520
- Sum of proper divisors (its aliquot sum) s(n): 282497592
- 138857928 is an abundant number, because the sum of its proper divisors (282497592) is greater than itself. Its abundance is 143639664
Bases of 138857928
- Binary: 10000100011011001101110010002
- Hexadecimal: 0x846CDC8
- Base-36: 2AO7GO
Squares and roots of 138857928
- 138857928 squared (1388579282) is 19281524168453184
- 138857928 cubed (1388579283) is 2677392494713332095242752
-
The
square root of 138857928 is 11783.7993872945 -
The
cube root of 138857928 is 517.8336003937
Scales and comparisons
How big is 138857928?- 138,857,928 seconds is equal to 4 years, 21 weeks, 4 days, 3 hours, 38 minutes, 48 seconds.
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To count from 1 to 138,857,928 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 138857928 cubic inches would be around 43.2 feet tall.
Recreational maths with 138857928
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