129530400
129,530,400 is an even composite number composed of five prime numbers multiplied together.
129530400 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 129530400:
25 × 3 × 52 × 31 × 1741
(2 × 2 × 2 × 2 × 2 × 3 × 5 × 5 × 31 × 1741)See below for interesting mathematical facts about the number 129530400 from the Numbermatics database.
Names of 129530400
- Cardinal: 129530400 can be written as One hundred twenty-nine million, five hundred thirty thousand, four hundred.
Scientific notation
- Scientific notation: 1.295304 × 108
Factors of 129530400
Divisors of 129530400
- Number of divisors d(n): 144
-
Complete list of divisors:
1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 31 32 40 48 50 60 62 75 80 93 96 100 120 124 150 155 160 186 200 240 248 300 310 372 400 465 480 496 600 620 744 775 800 930 992 1200 1240 1488 1550 1741 1860 2325 2400 2480 2976 3100 3482 3720 4650 4960 5223 6200 6964 7440 8705 9300 10446 12400 13928 14880 17410 18600 20892 24800 26115 27856 34820 37200 41784 43525 52230 53971 55712 69640 74400 83568 87050 104460 107942 130575 139280 161913 167136 174100 208920 215884 261150 269855 278560 323826 348200 417840 431768 522300 539710 647652 696400 809565 835680 863536 1044600 1079420 1295304 1349275 1392800 1619130 1727072 2089200 2158840 2590608 2698550 3238260 4047825 4178400 4317680 5181216 5397100 6476520 8095650 8635360 10794200 12953040 16191300 21588400 25906080 32382600 43176800 64765200 129530400
- Sum of all divisors σ(n): 435472128
- Sum of proper divisors (its aliquot sum) s(n): 305941728
- 129530400 is an abundant number, because the sum of its proper divisors (305941728) is greater than itself. Its abundance is 176411328
Bases of 129530400
- Binary: 1111011100001111010001000002
- Hexadecimal: 0x7B87A20
- Base-36: 254AAO
Squares and roots of 129530400
- 129530400 squared (1295304002) is 16778124524160000
- 129530400 cubed (1295304003) is 2173277180864254464000000
-
The
square root of 129530400 is 11381.1422976783 -
The
cube root of 129530400 is 505.9689920435
Scales and comparisons
How big is 129530400?- 129,530,400 seconds is equal to 4 years, 6 weeks, 1 day, 4 hours, 40 minutes.
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To count from 1 to 129,530,400 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 129530400 cubic inches would be around 42.2 feet tall.
Recreational maths with 129530400
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