7981400064

Names of 7981400064

• Cardinal: 7981400064 can be written as Seven billion, nine hundred eighty-one million, four hundred thousand and sixty-four.

Scientific notation

• Scientific notation: 7.981400064 × 10⁹

Factors of 7981400064

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 20
• Sum of prime factors: 77

Divisors of 7981400064

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 61 64 66 88 96 121 122 128 132 176 183 192 242 244 256 264 352 363 366 384 484 488 512 528 671 704 726 732 768 968 976 1024 1056 1331 1342 1408 1452 1464 1536 1936 1952 2013 2048 2112 2662 2684 2816 2904 2928 3072 3872 3904 3993 4026 4096 4224 5324 5368 5632 5808 5856 6144 7381 7744 7808 7986 8052 8192 8448 10648 10736 11264 11616 11712 12288 14762 15488 15616 15972 16104 16384 16896 21296 21472 22143 22528 23232 23424 24576 29524 30976 31232 31944 32208 32768 33792 42592 42944 44286 45056 46464 46848 49152 59048 61952 62464 63888 64416 67584 81191 85184 85888 88572 90112 92928 93696 98304 118096 123904 124928 127776 128832 135168 162382 170368 171776 177144 180224 185856 187392 236192 243573 247808 249856 255552 257664 270336 324764 340736 343552 354288 360448 371712 374784 472384 487146 495616 499712 511104 515328 540672 649528 681472 687104 708576 743424 749568 944768 974292 991232 999424 1022208 1030656 1081344 1299056 1362944 1374208 1417152 1486848 1499136 1889536 1948584 1982464 1998848 2044416 2061312 2598112 2725888 2748416 2834304 2973696 2998272 3779072 3897168 3964928 4088832 4122624 5196224 5451776 5496832 5668608 5947392 5996544 7558144 7794336 8177664 8245248 10392448 10903552 10993664 11337216 11894784 15116288 15588672 16355328 16490496 20784896 21807104 21987328 22674432 30232576 31177344 32710656 32980992 41569792 43614208 45348864 60465152 62354688 65421312 65961984 83139584 90697728 120930304 124709376 130842624 166279168 181395456 241860608 249418752 332558336 362790912 498837504 665116672 725581824 997675008 1330233344 1995350016 2660466688 3990700032 7981400064
• Sum of all divisors σ(n): 23793923520
• Sum of proper divisors (its aliquot sum) s(n): 15812523456
• 7981400064 is an abundant number, because the sum of its proper divisors (15812523456) is greater than itself. Its abundance is 7831123392

Bases of 7981400064

• Binary: 111011011101110101000000000000000₂
• Hexadecimal: 0x1DBBA8000
• Base-36: 3NZX3PC

Squares and roots of 7981400064

• 7981400064 squared (7981400064²) is 63702746981619204096
• 7981400064 cubed (7981400064³) is 508437108836071322395443462144
• The square root of 7981400064 is 89338.6817901407
• The cube root of 7981400064 is 1998.4488025375

Scales and comparisons

• 7,981,400,064 seconds is equal to 253 years, 40 weeks, 5 days, 7 hours, 34 minutes, 24 seconds.
• To count from 1 to 7,981,400,064 would take you about five hundred seven 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 7981400064 cubic inches would be around 166.5 feet tall.

Recreational maths with 7981400064

• 7981400064 backwards is 4600041897
• The number of decimal digits it has is: 10
• The sum of 7981400064's digits is 39
• More coming soon!