20721226752

Names of 20721226752

• Cardinal: 20721226752 can be written as Twenty billion, seven hundred twenty-one million, two hundred twenty-six thousand, seven hundred fifty-two.

Scientific notation

• Scientific notation: 2.0721226752 × 10¹⁰

Factors of 20721226752

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 14483

Divisors of 20721226752

• Number of divisors d(n): 132
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 128 144 157 192 256 288 314 384 471 512 576 628 768 942 1024 1152 1256 1413 1536 1884 2304 2512 2826 3072 3768 4608 5024 5652 7536 9216 10048 11304 14321 15072 20096 22608 28642 30144 40192 42963 45216 57284 60288 80384 85926 90432 114568 120576 128889 160768 171852 180864 229136 241152 257778 343704 361728 458272 482304 515556 687408 723456 916544 1031112 1374816 1446912 1833088 2062224 2248397 2749632 3666176 4124448 4496794 5499264 6745191 7332352 8248896 8993588 10998528 13490382 14664704 16497792 17987176 20235573 21997056 26980764 32995584 35974352 40471146 43994112 53961528 65991168 71948704 80942292 107923056 131982336 143897408 161884584 215846112 287794816 323769168 431692224 575589632 647538336 863384448 1151179264 1295076672 1726768896 2302358528 2590153344 3453537792 5180306688 6907075584 10360613376 20721226752
• Sum of all divisors σ(n): 60217393236
• Sum of proper divisors (its aliquot sum) s(n): 39496166484
• 20721226752 is an abundant number, because the sum of its proper divisors (39496166484) is greater than itself. Its abundance is 18774939732

Bases of 20721226752

• Binary: 10011010011000101001101010000000000₂
• Hexadecimal: 0x4D314D400
• Base-36: 9IOVSW0

Squares and roots of 20721226752

• 20721226752 squared (20721226752²) is 429369238107800469504
• 20721226752 cubed (20721226752³) is 8897057343165212948564444971008
• The square root of 20721226752 is 143948.6948603565
• The cube root of 20721226752 is 2746.6615908831

Scales and comparisons

• 20,721,226,752 seconds is equal to 658 years, 45 weeks, 2 days, 19 minutes, 12 seconds.
• To count from 1 to 20,721,226,752 would take you about one thousand, three hundred seventeen 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 20721226752 cubic inches would be around 228.9 feet tall.

Recreational maths with 20721226752

• 20721226752 backwards is 25762212702
• 20721226752 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 20721226752's digits is 36
• More coming soon!