15420397824

Names of 15420397824

• Cardinal: 15420397824 can be written as Fifteen billion, four hundred twenty million, three hundred ninety-seven thousand, eight hundred twenty-four.

Scientific notation

• Scientific notation: 1.5420397824 × 10¹⁰

Factors of 15420397824

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 521

Divisors of 15420397824

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 18 24 26 29 32 36 39 41 48 52 58 64 72 78 82 87 96 104 116 117 123 128 144 156 164 174 192 208 232 234 246 256 261 288 312 328 348 369 377 384 416 433 464 468 492 522 533 576 624 656 696 738 754 768 832 866 928 936 984 1044 1066 1131 1152 1189 1248 1299 1312 1392 1476 1508 1599 1664 1732 1856 1872 1968 2088 2132 2262 2304 2378 2496 2598 2624 2784 2952 3016 3198 3328 3393 3464 3567 3712 3744 3897 3936 4176 4264 4524 4756 4797 4992 5196 5248 5568 5629 5904 6032 6396 6786 6928 7134 7424 7488 7794 7872 8352 8528 9048 9512 9594 9984 10392 10496 10701 11136 11258 11808 12064 12557 12792 13572 13856 14268 14976 15457 15588 15744 16704 16887 17056 17753 18096 19024 19188 20784 21402 22272 22516 23616 24128 25114 25584 27144 27712 28536 29952 30914 31176 31488 33408 33774 34112 35506 36192 37671 38048 38376 41568 42804 45032 46371 47232 48256 50228 50661 51168 53259 54288 55424 57072 61828 62352 66816 67548 68224 71012 72384 75342 76096 76752 83136 85608 90064 92742 94464 96512 100456 101322 102336 106518 108576 110848 113013 114144 123656 124704 135096 136448 139113 142024 144768 150684 152192 153504 159777 163241 166272 171216 180128 185484 200912 202644 204672 213036 217152 226026 228288 230789 247312 249408 270192 278226 284048 289536 301368 304384 307008 319554 326482 332544 342432 360256 370968 401824 405288 409344 426072 434304 452052 456576 461578 489723 494624 498816 514837 540384 556452 568096 602736 614016 639108 652964 684864 692367 720512 741936 803648 810576 852144 868608 904104 913152 923156 979446 989248 997632 1029674 1080768 1112904 1136192 1205472 1228032 1278216 1305928 1369728 1384734 1441024 1469169 1483872 1544511 1607296 1621152 1704288 1808208 1846312 1958892 1978496 2059348 2077101 2161536 2225808 2272384 2410944 2556432 2611856 2739456 2769468 2938338 2967744 3089022 3214592 3242304 3408576 3616416 3692624 3917784 3956992 4118696 4154202 4323072 4451616 4544768 4633533 4821888 5112864 5223712 5538936 5876676 5935488 6178044 6484608 6692881 6817152 7232832 7385248 7835568 8237392 8308404 8903232 9267066 9643776 10225728 10447424 11077872 11753352 11870976 12356088 12969216 13385762 13634304 14465664 14770496 15671136 16474784 16616808 17806464 18534132 20078643 20451456 20894848 22155744 23506704 24712176 26771524 28931328 29540992 31342272 32949568 33233616 35612928 37068264 40157286 40902912 41789696 44311488 47013408 49424352 53543048 59081984 60235929 62684544 65899136 66467232 74136528 80314572 88622976 94026816 98848704 107086096 120471858 125369088 131798272 132934464 148273056 160629144 177245952 188053632 197697408 214172192 240943716 265868928 296546112 321258288 376107264 395394816 428344384 481887432 531737856 593092224 642516576 856688768 963774864 1186184448 1285033152 1713377536 1927549728 2570066304 3855099456 5140132608 7710198912 15420397824
• Sum of all divisors σ(n): 50857213680
• Sum of proper divisors (its aliquot sum) s(n): 35436815856
• 15420397824 is an abundant number, because the sum of its proper divisors (35436815856) is greater than itself. Its abundance is 20016418032

Bases of 15420397824

• Binary: 1110010111001000001001100100000000₂
• Hexadecimal: 0x397209900
• Base-36: 730WN40

Squares and roots of 15420397824

• 15420397824 squared (15420397824²) is 237788669050423934976
• 15420397824 cubed (15420397824³) is 3666795874797013393181427892224
• The square root of 15420397824 is 124178.8944386283
• The cube root of 15420397824 is 2489.0399046879

Scales and comparisons

• 15,420,397,824 seconds is equal to 490 years, 16 weeks, 4 days, 19 hours, 50 minutes, 24 seconds.
• To count from 1 to 15,420,397,824 would take you about nine hundred eighty 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 15420397824 cubic inches would be around 207.4 feet tall.

Recreational maths with 15420397824

• 15420397824 backwards is 42879302451
• The number of decimal digits it has is: 11
• The sum of 15420397824's digits is 45
• More coming soon!