1638541974452800

Names of 1638541974452800

• Cardinal: 1638541974452800 can be written as One quadrillion, six hundred thirty-eight trillion, five hundred forty-one billion, nine hundred seventy-four million, four hundred fifty-two thousand, eight hundred.

Scientific notation

• Scientific notation: 1.6385419744528 × 10¹⁵

Factors of 1638541974452800

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 2056553

Divisors of 1638541974452800

• Number of divisors d(n): 84
• Complete list of divisors:
  1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 160 200 320 400 800 1600 845909 1210637 1691818 2421274 3383636 4229545 4842548 6053185 6767272 8459090 9685096 12106370 13534544 16918180 19370192 21147725 24212740 27069088 30265925 33836360 38740384 42295450 48425480 54138176 60531850 67672720 77480768 84590900 96850960 121063700 135345440 169181800 193701920 242127400 270690880 338363600 387403840 484254800 676727200 968509600 1353454400 1937019200 1024088734033 2048177468066 4096354936132 5120443670165 8192709872264 10240887340330 16385419744528 20481774680660 25602218350825 32770839489056 40963549361320 51204436701650 65541678978112 81927098722640 102408873403300 163854197445280 204817746806600 327708394890560 409635493613200 819270987226400 1638541974452800
• Sum of all divisors σ(n): 4031845442513460
• Sum of proper divisors (its aliquot sum) s(n): 2393303468060660
• 1638541974452800 is an abundant number, because the sum of its proper divisors (2393303468060660) is greater than itself. Its abundance is 754761493607860

Bases of 1638541974452800

• Binary: 101110100100011111011001000010101100011101001000000₂
• Hexadecimal: 0x5D23EC8563A40
• Base-36: G4TBSHOT34

Squares and roots of 1638541974452800

• 1638541974452800 squared (1638541974452800²) is 2684819802043680287859427840000
• 1638541974452800 cubed (1638541974452800³) is 4399189939490627539459453561806905085952000000
• The square root of 1638541974452800 is 40478907.7724782489
• The cube root of 1638541974452800 is 117892.4130557697

Scales and comparisons

• 1,638,541,974,452,800 seconds is equal to 52,100,566 years, 23 weeks, 19 hours, 6 minutes, 40 seconds.
• To count from 1 to 1,638,541,974,452,800 would take you about one hundred fifty-six million, three hundred one thousand, six hundred ninety-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 1638541974452800 cubic inches would be around 9824.4 feet tall.

Recreational maths with 1638541974452800

• 1638541974452800 backwards is 0082544791458361
• The number of decimal digits it has is: 16
• The sum of 1638541974452800's digits is 67
• More coming soon!