389929280
389,929,280 is an even composite number composed of five prime numbers multiplied together.
389929280 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred twelve divisors.
Prime factorization of 389929280:
26 × 5 × 13 × 67 × 1399
(2 × 2 × 2 × 2 × 2 × 2 × 5 × 13 × 67 × 1399)See below for interesting mathematical facts about the number 389929280 from the Numbermatics database.
Names of 389929280
- Cardinal: 389929280 can be written as Three hundred eighty-nine million, nine hundred twenty-nine thousand, two hundred eighty.
Scientific notation
- Scientific notation: 3.8992928 × 108
Factors of 389929280
Divisors of 389929280
- Number of divisors d(n): 112
-
Complete list of divisors:
1 2 4 5 8 10 13 16 20 26 32 40 52 64 65 67 80 104 130 134 160 208 260 268 320 335 416 520 536 670 832 871 1040 1072 1340 1399 1742 2080 2144 2680 2798 3484 4160 4288 4355 5360 5596 6968 6995 8710 10720 11192 13936 13990 17420 18187 21440 22384 27872 27980 34840 36374 44768 55744 55960 69680 72748 89536 90935 93733 111920 139360 145496 181870 187466 223840 278720 290992 363740 374932 447680 468665 581984 727480 749864 937330 1163968 1218529 1454960 1499728 1874660 2437058 2909920 2999456 3749320 4874116 5819840 5998912 6092645 7498640 9748232 12185290 14997280 19496464 24370580 29994560 38992928 48741160 77985856 97482320 194964640 389929280
- Sum of all divisors σ(n): 1015593600
- Sum of proper divisors (its aliquot sum) s(n): 625664320
- 389929280 is an abundant number, because the sum of its proper divisors (625664320) is greater than itself. Its abundance is 235735040
Bases of 389929280
- Binary: 101110011110111011001010000002
- Hexadecimal: 0x173DD940
- Base-36: 6G5JCW
Squares and roots of 389929280
- 389929280 squared (3899292802) is 152044843401318400
- 389929280 cubed (3899292803) is 59286736315188834762752000
-
The
square root of 389929280 is 19746.6270537529 -
The
cube root of 389929280 is 730.5701931577
Scales and comparisons
How big is 389929280?- 389,929,280 seconds is equal to 12 years, 20 weeks, 5 days, 1 hour, 41 minutes, 20 seconds.
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To count from 1 to 389,929,280 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 389929280 cubic inches would be around 60.9 feet tall.
Recreational maths with 389929280
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