389880972
389,880,972 is an even composite number composed of five prime numbers multiplied together.
389880972 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 389880972:
22 × 33 × 132 × 41 × 521
(2 × 2 × 3 × 3 × 3 × 13 × 13 × 41 × 521)See below for interesting mathematical facts about the number 389880972 from the Numbermatics database.
Names of 389880972
- Cardinal: 389880972 can be written as Three hundred eighty-nine million, eight hundred eighty thousand, nine hundred seventy-two.
Scientific notation
- Scientific notation: 3.89880972 × 108
Factors of 389880972
Divisors of 389880972
- Number of divisors d(n): 144
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Complete list of divisors:
1 2 3 4 6 9 12 13 18 26 27 36 39 41 52 54 78 82 108 117 123 156 164 169 234 246 338 351 369 468 492 507 521 533 676 702 738 1014 1042 1066 1107 1404 1476 1521 1563 1599 2028 2084 2132 2214 3042 3126 3198 4428 4563 4689 4797 6084 6252 6396 6773 6929 9126 9378 9594 13546 13858 14067 14391 18252 18756 19188 20319 20787 21361 27092 27716 28134 28782 40638 41574 42722 56268 57564 60957 62361 64083 81276 83148 85444 88049 121914 124722 128166 176098 182871 187083 192249 243828 249444 256332 264147 277693 352196 365742 374166 384498 528294 555386 576747 731484 748332 768996 792441 833079 1056588 1110772 1153494 1584882 1666158 2306988 2377323 2499237 3169764 3332316 3610009 4754646 4998474 7220018 7497711 9509292 9996948 10830027 14440036 14995422 21660054 29990844 32490081 43320108 64980162 97470243 129960324 194940486 389880972
- Sum of all divisors σ(n): 1123385760
- Sum of proper divisors (its aliquot sum) s(n): 733504788
- 389880972 is an abundant number, because the sum of its proper divisors (733504788) is greater than itself. Its abundance is 343623816
Bases of 389880972
- Binary: 101110011110100011100100011002
- Hexadecimal: 0x173D1C8C
- Base-36: 6G4I30
Squares and roots of 389880972
- 389880972 squared (3898809722) is 152007172327664784
- 389880972 cubed (3898809723) is 59264704098081448476090048
-
The
square root of 389880972 is 19745.4038196235 -
The
cube root of 389880972 is 730.5400220095
Scales and comparisons
How big is 389880972?- 389,880,972 seconds is equal to 12 years, 20 weeks, 4 days, 12 hours, 16 minutes, 12 seconds.
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To count from 1 to 389,880,972 would take you about eighteen 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 389880972 cubic inches would be around 60.9 feet tall.
Recreational maths with 389880972
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