6439569920

Names of 6439569920

• Cardinal: 6439569920 can be written as Six billion, four hundred thirty-nine million, five hundred sixty-nine thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 6.43956992 × 10⁹

Factors of 6439569920

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 255

Divisors of 6439569920

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 28 32 35 40 43 56 61 64 70 80 86 112 122 128 137 140 160 172 215 224 244 256 274 280 301 305 320 344 427 430 448 488 512 548 560 602 610 640 685 688 854 860 896 959 976 1096 1120 1204 1220 1280 1370 1376 1505 1708 1720 1792 1918 1952 2135 2192 2240 2408 2440 2560 2623 2740 2752 3010 3416 3440 3584 3836 3904 4270 4384 4480 4795 4816 4880 5246 5480 5504 5891 6020 6832 6880 7672 7808 8357 8540 8768 8960 9590 9632 9760 10492 10960 11008 11782 12040 13115 13664 13760 15344 15616 16714 17080 17536 17920 18361 19180 19264 19520 20984 21920 22016 23564 24080 26230 27328 27520 29455 30688 31232 33428 34160 35072 36722 38360 38528 39040 41237 41785 41968 43840 47128 48160 52460 54656 55040 58499 58910 61376 66856 68320 70144 73444 76720 77056 78080 82474 83570 83936 87680 91805 94256 96320 104920 109312 110080 116998 117820 122752 133712 136640 146888 153440 154112 156160 164948 167140 167872 175360 183610 188512 192640 206185 209840 218624 233996 235640 245504 267424 273280 292495 293776 306880 329896 334280 335744 350720 359351 367220 377024 385280 412370 419680 467992 471280 491008 534848 546560 584990 587552 613760 659792 668560 671488 718702 734440 754048 770560 824740 839360 935984 942560 1069696 1093120 1169980 1175104 1227520 1319584 1337120 1342976 1437404 1468880 1508096 1649480 1678720 1796755 1871968 1885120 2139392 2339960 2350208 2455040 2515457 2639168 2674240 2874808 2937760 3016192 3298960 3357440 3593510 3743936 3770240 4278784 4679920 4700416 5030914 5278336 5348480 5749616 5875520 6597920 6714880 7187020 7487872 7540480 9359840 9400832 10061828 10556672 10696960 11499232 11751040 12577285 13195840 14374040 14975744 15080960 18719680 20123656 21113344 21393920 22998464 23502080 25154570 26391680 28748080 29951488 37439360 40247312 45996928 47004160 50309140 52783360 57496160 74878720 80494624 91993856 100618280 105566720 114992320 149757440 160989248 183987712 201236560 229984640 321978496 402473120 459969280 643956992 804946240 919938560 1287913984 1609892480 3219784960 6439569920
• Sum of all divisors σ(n): 18485888256
• Sum of proper divisors (its aliquot sum) s(n): 12046318336
• 6439569920 is an abundant number, because the sum of its proper divisors (12046318336) is greater than itself. Its abundance is 5606748416

Bases of 6439569920

• Binary: 101111111110101000000101000000000₂
• Hexadecimal: 0x17FD40A00
• Base-36: 2YHYBY8

Squares and roots of 6439569920

• 6439569920 squared (6439569920²) is 41468060754568806400
• 6439569920 cubed (6439569920³) is 267036476675853788263743488000
• The square root of 6439569920 is 80246.9309070447
• The cube root of 6439569920 is 1860.4540765205

Scales and comparisons

• 6,439,569,920 seconds is equal to 204 years, 39 weeks, 3 days, 1 hour, 25 minutes, 20 seconds.
• To count from 1 to 6,439,569,920 would take you about four hundred nine 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 6439569920 cubic inches would be around 155 feet tall.

Recreational maths with 6439569920

• 6439569920 backwards is 0299659346
• The number of decimal digits it has is: 10
• The sum of 6439569920's digits is 53
• More coming soon!