21131372880
21,131,372,880 is an even composite number composed of six prime numbers multiplied together.
21131372880 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of three hundred twenty divisors.
Prime factorization of 21131372880:
24 × 33 × 5 × 19 × 103 × 4999
(2 × 2 × 2 × 2 × 3 × 3 × 3 × 5 × 19 × 103 × 4999)See below for interesting mathematical facts about the number 21131372880 from the Numbermatics database.
Names of 21131372880
- Cardinal: 21131372880 can be written as Twenty-one billion, one hundred thirty-one million, three hundred seventy-two thousand, eight hundred eighty.
Scientific notation
- Scientific notation: 2.113137288 × 1010
Factors of 21131372880
Divisors of 21131372880
- Number of divisors d(n): 320
-
Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 16 18 19 20 24 27 30 36 38 40 45 48 54 57 60 72 76 80 90 95 103 108 114 120 135 144 152 171 180 190 206 216 228 240 270 285 304 309 342 360 380 412 432 456 513 515 540 570 618 684 720 760 824 855 912 927 1026 1030 1080 1140 1236 1368 1520 1545 1648 1710 1854 1957 2052 2060 2160 2280 2472 2565 2736 2781 3090 3420 3708 3914 4104 4120 4560 4635 4944 4999 5130 5562 5871 6180 6840 7416 7828 8208 8240 9270 9785 9998 10260 11124 11742 12360 13680 13905 14832 14997 15656 17613 18540 19570 19996 20520 22248 23484 24720 24995 27810 29355 29994 31312 35226 37080 39140 39992 41040 44496 44991 46968 49990 52839 55620 58710 59988 70452 74160 74985 78280 79984 88065 89982 93936 94981 99980 105678 111240 117420 119976 134973 140904 149970 156560 176130 179964 189962 199960 211356 222480 224955 234840 239952 264195 269946 281808 284943 299940 352260 359928 379924 399920 422712 449910 469680 474905 514897 528390 539892 569886 599880 674865 704520 719856 759848 845424 854829 899820 949810 1029794 1056780 1079784 1139772 1199760 1349730 1409040 1424715 1519696 1544691 1709658 1799640 1899620 2059588 2113560 2159568 2279544 2564487 2574485 2699460 2849430 3089382 3419316 3599280 3799240 4119176 4227120 4274145 4559088 4634073 5128974 5148970 5398920 5698860 6178764 6838632 7598480 7723455 8238352 8548290 9268146 9783043 10257948 10297940 10797840 11397720 12357528 12822435 13677264 13902219 15446910 17096580 18536292 19566086 20515896 20595880 22795440 23170365 24715056 25644870 27804438 29349129 30893820 34193160 37072584 39132172 41031792 41191760 46340730 48915215 51289740 55608876 58698258 61787640 68386320 69511095 74145168 78264344 88047387 92681460 97830430 102579480 111217752 117396516 123575280 139022190 146745645 156528688 176094774 185362920 195660860 205158960 222435504 234793032 264142161 278044380 293491290 352189548 370725840 391321720 440236935 469586064 528284322 556088760 586982580 704379096 782643440 880473870 1056568644 1112177520 1173965160 1320710805 1408758192 1760947740 2113137288 2347930320 2641421610 3521895480 4226274576 5282843220 7043790960 10565686440 21131372880
- Sum of all divisors σ(n): 77376000000
- Sum of proper divisors (its aliquot sum) s(n): 56244627120
- 21131372880 is an abundant number, because the sum of its proper divisors (56244627120) is greater than itself. Its abundance is 35113254240
Bases of 21131372880
- Binary: 100111010111000011100101001010100002
- Hexadecimal: 0x4EB872950
- Base-36: 9PH2NO0
Squares and roots of 21131372880
- 21131372880 squared (211313728802) is 446534919793599494400
- 21131372880 cubed (211313728803) is 9435895894099443553545871872000
-
The
square root of 21131372880 is 145366.3402579841 -
The
cube root of 21131372880 is 2764.6653608901
Scales and comparisons
How big is 21131372880?- 21,131,372,880 seconds is equal to 671 years, 47 weeks, 3 days, 1 hour, 48 minutes.
-
To count from 1 to 21,131,372,880 would take you about one thousand, three hundred forty-three 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 21131372880 cubic inches would be around 230.4 feet tall.
Recreational maths with 21131372880
- 21131372880 backwards is 08827313112
- 21131372880 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21131372880's digits is 36
- More coming soon!
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