1388229920
1,388,229,920 is an even composite number composed of six prime numbers multiplied together.
1388229920 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 1388229920:
25 × 5 × 7 × 11 × 281 × 401
(2 × 2 × 2 × 2 × 2 × 5 × 7 × 11 × 281 × 401)See below for interesting mathematical facts about the number 1388229920 from the Numbermatics database.
Names of 1388229920
- Cardinal: 1388229920 can be written as One billion, three hundred eighty-eight million, two hundred twenty-nine thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 1.38822992 × 109
Factors of 1388229920
Divisors of 1388229920
- Number of divisors d(n): 192
-
Complete list of divisors:
1 2 4 5 7 8 10 11 14 16 20 22 28 32 35 40 44 55 56 70 77 80 88 110 112 140 154 160 176 220 224 280 281 308 352 385 401 440 560 562 616 770 802 880 1120 1124 1232 1405 1540 1604 1760 1967 2005 2248 2464 2807 2810 3080 3091 3208 3934 4010 4411 4496 5614 5620 6160 6182 6416 7868 8020 8822 8992 9835 11228 11240 12320 12364 12832 14035 15455 15736 16040 17644 19670 21637 22055 22456 22480 24728 28070 30877 30910 31472 32080 35288 39340 43274 44110 44912 44960 49456 56140 61754 61820 62944 64160 70576 78680 86548 88220 89824 98912 108185 112280 112681 123508 123640 141152 154385 157360 173096 176440 216370 224560 225362 247016 247280 308770 314720 346192 352880 432740 449120 450724 494032 494560 563405 617540 692384 705760 788767 865480 901448 988064 1126810 1235080 1239491 1577534 1730960 1802896 2253620 2470160 2478982 3155068 3461920 3605792 3943835 4507240 4940320 4957964 6197455 6310136 7887670 8676437 9014480 9915928 12394910 12620272 15775340 17352874 18028960 19831856 24789820 25240544 31550680 34705748 39663712 43382185 49579640 63101360 69411496 86764370 99159280 126202720 138822992 173528740 198318560 277645984 347057480 694114960 1388229920
- Sum of all divisors σ(n): 4113752832
- Sum of proper divisors (its aliquot sum) s(n): 2725522912
- 1388229920 is an abundant number, because the sum of its proper divisors (2725522912) is greater than itself. Its abundance is 1337292992
Bases of 1388229920
- Binary: 10100101011111010110101001000002
- Hexadecimal: 0x52BEB520
- Base-36: MYIL28
Squares and roots of 1388229920
- 1388229920 squared (13882299202) is 1927182310783206400
- 1388229920 cubed (13882299203) is 2675372145123985758015488000
-
The
square root of 1388229920 is 37258.9575806947 -
The
cube root of 1388229920 is 1115.5451013615
Scales and comparisons
How big is 1388229920?- 1,388,229,920 seconds is equal to 44 years, 7 weeks, 2 days, 11 hours, 25 minutes, 20 seconds.
-
To count from 1 to 1,388,229,920 would take you about eighty-eight 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 1388229920 cubic inches would be around 93 feet tall.
Recreational maths with 1388229920
- 1388229920 backwards is 0299228831
- 1388229920 is a
Harshad number . - The number of decimal digits it has is: 10
- The sum of 1388229920's digits is 44
- More coming soon!
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