1321491990
1,321,491,990 is an even composite number composed of eight prime numbers multiplied together.
1321491990 is an even composite number. It is composed of eight distinct prime numbers multiplied together. It has a total of two hundred fifty-six divisors.
Prime factorization of 1321491990:
2 × 3 × 5 × 7 × 13 × 19 × 73 × 349
See below for interesting mathematical facts about the number 1321491990 from the Numbermatics database.
Names of 1321491990
- Cardinal: 1321491990 can be written as One billion, three hundred twenty-one million, four hundred ninety-one thousand, nine hundred ninety.
Scientific notation
- Scientific notation: 1.32149199 × 109
Factors of 1321491990
Divisors of 1321491990
- Number of divisors d(n): 256
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Complete list of divisors:
1 2 3 5 6 7 10 13 14 15 19 21 26 30 35 38 39 42 57 65 70 73 78 91 95 105 114 130 133 146 182 190 195 210 219 247 266 273 285 349 365 390 399 438 455 494 511 546 570 665 698 730 741 798 910 949 1022 1047 1095 1235 1330 1365 1387 1482 1533 1729 1745 1898 1995 2094 2190 2443 2470 2555 2730 2774 2847 3066 3458 3490 3705 3990 4161 4537 4745 4886 5110 5187 5235 5694 6631 6643 6935 7329 7410 7665 8322 8645 9074 9490 9709 10374 10470 12215 13262 13286 13611 13870 14235 14658 15330 17290 18031 19418 19893 19929 20805 22685 24430 25477 25935 27222 28470 29127 31759 33155 33215 36062 36645 39786 39858 41610 45370 46417 48545 50954 51870 54093 58254 63518 66310 66430 68055 73290 76431 86203 90155 92834 95277 97090 99465 99645 108186 126217 127385 136110 139251 145635 152862 158795 172406 178339 180310 190554 198930 199290 232085 252434 254770 258609 270465 278502 291270 317590 331201 356678 378651 382155 431015 464170 476385 484063 517218 535017 540930 603421 631085 662402 696255 757302 764310 862030 891695 952770 968126 993603 1070034 1206842 1262170 1293045 1392510 1452189 1656005 1783390 1810263 1893255 1987206 2318407 2420315 2586090 2675085 2904378 3017105 3312010 3388441 3620526 3786510 4636814 4840630 4968015 5350170 6034210 6292819 6776882 6955221 7260945 9051315 9936030 10165323 11592035 12585638 13910442 14521890 16942205 18102630 18878457 20330646 23184070 31464095 33884410 34776105 37756914 44049733 50826615 62928190 69552210 88099466 94392285 101653230 132149199 188784570 220248665 264298398 440497330 660745995 1321491990
- Sum of all divisors σ(n): 4177152000
- Sum of proper divisors (its aliquot sum) s(n): 2855660010
- 1321491990 is an abundant number, because the sum of its proper divisors (2855660010) is greater than itself. Its abundance is 1534168020
Bases of 1321491990
- Binary: 10011101100010001011110000101102
- Hexadecimal: 0x4EC45E16
- Base-36: LUS5QU
Squares and roots of 1321491990
- 1321491990 squared (13214919902) is 1746341079634160100
- 1321491990 cubed (13214919903) is 2307775748544494702527599000
-
The
square root of 1321491990 is 36352.3312870027 -
The
cube root of 1321491990 is 1097.3744516627
Scales and comparisons
How big is 1321491990?- 1,321,491,990 seconds is equal to 42 years, 1 week, 1 hour, 6 minutes, 30 seconds.
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To count from 1 to 1,321,491,990 would take you about eighty-four 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 1321491990 cubic inches would be around 91.4 feet tall.
Recreational maths with 1321491990
- 1321491990 backwards is 0991941231
- 1321491990 is a
Harshad number . - The number of decimal digits it has is: 10
- The sum of 1321491990's digits is 39
- More coming soon!
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Numbermatics. (2024). Number 1321491990 - Facts about the integer. Retrieved 2 May 2024, from https://numbermatics.com/n/1321491990/
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The information we have on file for 1321491990 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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