51491890944

Names of 51491890944

• Cardinal: 51491890944 can be written as Fifty-one billion, four hundred ninety-one million, eight hundred ninety thousand, nine hundred forty-four.

Scientific notation

• Scientific notation: 5.1491890944 × 10¹⁰

Factors of 51491890944

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 775

Divisors of 51491890944

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 18 24 26 27 32 36 39 48 52 54 64 72 78 96 104 108 117 128 144 156 192 208 216 234 256 288 312 351 384 416 432 468 576 624 702 757 768 832 864 936 1152 1248 1404 1514 1664 1728 1872 2271 2304 2496 2808 3028 3328 3456 3744 4542 4992 5616 6056 6813 6912 7488 9084 9841 9984 11232 12112 13626 14976 18168 19682 20439 22464 24224 27252 29523 29952 36336 39364 40878 44928 48448 54504 59046 72672 78728 81756 88569 89856 96896 109008 118092 145344 157456 163512 177138 193792 218016 236184 265707 290688 314912 327024 354276 436032 472368 531414 573049 581376 629824 654048 708552 872064 944736 1062828 1146098 1259648 1308096 1417104 1719147 1744128 1889472 2125656 2292196 2519296 2616192 2834208 3438294 3778944 4251312 4584392 5157441 5232384 5668416 6876588 7449637 7557888 8502624 9168784 10314882 11336832 13753176 14899274 15472323 17005248 18337568 20629764 22348911 22673664 27506352 29798548 30944646 34010496 36675136 41259528 44697822 55012704 59597096 61889292 67046733 68020992 73350272 82519056 89395644 110025408 119194192 123778584 134093466 146700544 165038112 178791288 201140199 220050816 238388384 247557168 268186932 330076224 357582576 402280398 440101632 476776768 495114336 536373864 660152448 715165152 804560796 953553536 990228672 1072747728 1320304896 1430330304 1609121592 1907107072 1980457344 2145495456 2860660608 3218243184 3960914688 4290990912 5721321216 6436486368 8581981824 12872972736 17163963648 25745945472 51491890944
• Sum of all divisors σ(n): 164200611120
• Sum of proper divisors (its aliquot sum) s(n): 112708720176
• 51491890944 is an abundant number, because the sum of its proper divisors (112708720176) is greater than itself. Its abundance is 61216829232

Bases of 51491890944

• Binary: 101111111101001001111110011100000000₂
• Hexadecimal: 0xBFD27E700
• Base-36: NNKXXC0

Squares and roots of 51491890944

• 51491890944 squared (51491890944²) is 2651414832988789211136
• 51491890944 cubed (51491890944³) is 136526363427562707634418702352384
• The square root of 51491890944 is 226918.2472698041
• The cube root of 51491890944 is 3720.3141462069

Scales and comparisons

• 51,491,890,944 seconds is equal to 1,637 years, 14 weeks, 4 days, 23 hours, 2 minutes, 24 seconds.
• To count from 1 to 51,491,890,944 would take you about three thousand, two hundred seventy-four 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 51491890944 cubic inches would be around 310 feet tall.

Recreational maths with 51491890944

• 51491890944 backwards is 44909819415
• 51491890944 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 51491890944's digits is 54
• More coming soon!