21125378988
21,125,378,988 is an even composite number composed of six prime numbers multiplied together.
21125378988 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of three hundred eighty-four divisors.
Prime factorization of 21125378988:
22 × 37 × 7 × 19 × 67 × 271
(2 × 2 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 7 × 19 × 67 × 271)See below for interesting mathematical facts about the number 21125378988 from the Numbermatics database.
Names of 21125378988
- Cardinal: 21125378988 can be written as Twenty-one billion, one hundred twenty-five million, three hundred seventy-eight thousand, nine hundred eighty-eight.
Scientific notation
- Scientific notation: 2.1125378988 × 1010
Factors of 21125378988
Divisors of 21125378988
- Number of divisors d(n): 384
-
Complete list of divisors:
1 2 3 4 6 7 9 12 14 18 19 21 27 28 36 38 42 54 57 63 67 76 81 84 108 114 126 133 134 162 171 189 201 228 243 252 266 268 271 324 342 378 399 402 469 486 513 532 542 567 603 684 729 756 798 804 813 938 972 1026 1084 1134 1197 1206 1273 1407 1458 1539 1596 1626 1701 1809 1876 1897 2052 2187 2268 2394 2412 2439 2546 2814 2916 3078 3252 3402 3591 3618 3794 3819 4221 4374 4617 4788 4878 5092 5103 5149 5427 5628 5691 6156 6804 7182 7236 7317 7588 7638 8442 8748 8911 9234 9756 10206 10298 10773 10854 11382 11457 12663 13851 14364 14634 15276 15309 15447 16281 16884 17073 17822 18157 18468 20412 20596 21546 21708 21951 22764 22914 25326 26733 27702 29268 30618 30894 32319 32562 34146 34371 35644 36043 36314 37989 41553 43092 43902 45828 46341 48843 50652 51219 53466 54471 55404 61236 61788 64638 65124 65853 68292 68742 72086 72628 75978 80199 83106 87804 92682 96957 97686 102438 103113 106932 108129 108942 113967 127099 129276 131706 137484 139023 144172 146529 151956 153657 160398 163413 166212 185364 193914 195372 197559 204876 206226 216258 217884 227934 240597 254198 263412 278046 290871 293058 307314 309339 320796 324387 326826 341901 344983 381297 387828 395118 412452 417069 432516 455868 460971 481194 490239 508396 556092 581742 586116 592677 614628 618678 648774 653652 683802 689966 721791 762594 790236 834138 921942 928017 962388 973161 980478 1025703 1034949 1143891 1163484 1185354 1237356 1251207 1297548 1367604 1379932 1382913 1443582 1470717 1525188 1668276 1843884 1856034 1946322 1960956 2051406 2069898 2165373 2287782 2370708 2414881 2502414 2765826 2784051 2887164 2919483 2941434 3104847 3431673 3712068 3753621 3892644 4102812 4139796 4148739 4330746 4412151 4575564 4829762 5004828 5531652 5568102 5838966 5882868 6209694 6496119 6863346 7244643 7507242 8297478 8661492 8758449 8824302 9314541 9659524 10295019 11136204 11260863 11677932 12419388 12992238 13236453 13726692 14489286 15014484 16594956 17516898 17648604 18629082 19488357 20590038 21733929 22521726 25984476 26275347 26472906 27943623 28978572 30885057 35033796 37258164 38976714 39709359 41180076 43467858 45043452 52550694 52945812 55887246 61770114 65201787 77953428 78826041 79418718 83830869 86935716 92655171 105101388 111774492 123540228 130403574 157652082 158837436 167661738 185310342 195605361 251492607 260807148 277965513 315304164 335323476 370620684 391210722 502985214 555931026 586816083 754477821 782421444 1005970428 1111862052 1173632166 1508955642 1760448249 2347264332 3017911284 3520896498 5281344747 7041792996 10562689494 21125378988
- Sum of all divisors σ(n): 67946905600
- Sum of proper divisors (its aliquot sum) s(n): 46821526612
- 21125378988 is an abundant number, because the sum of its proper divisors (46821526612) is greater than itself. Its abundance is 25696147624
Bases of 21125378988
- Binary: 100111010110010101110110011101011002
- Hexadecimal: 0x4EB2BB3AC
- Base-36: 9PDI6R0
Squares and roots of 21125378988
- 21125378988 squared (211253789882) is 446281637386631904144
- 21125378988 cubed (211253789883) is 9427868725177788859894087726272
-
The
square root of 21125378988 is 145345.7222899935 -
The
cube root of 21125378988 is 2764.4039380171
Scales and comparisons
How big is 21125378988?- 21,125,378,988 seconds is equal to 671 years, 37 weeks, 3 days, 16 hours, 49 minutes, 48 seconds.
-
To count from 1 to 21,125,378,988 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 21125378988 cubic inches would be around 230.4 feet tall.
Recreational maths with 21125378988
- 21125378988 backwards is 88987352112
- 21125378988 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21125378988's digits is 54
- More coming soon!
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