61395968920

Names of 61395968920

• Cardinal: 61395968920 can be written as Sixty-one billion, three hundred ninety-five million, nine hundred sixty-eight thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 6.139596892 × 10¹⁰

Factors of 61395968920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 10733592

Divisors of 61395968920

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 4 5 8 10 11 13 20 22 26 40 44 52 55 65 88 104 110 130 143 220 260 286 440 520 572 715 1144 1430 2860 5720 10733561 21467122 42934244 53667805 85868488 107335610 118069171 139536293 214671220 236138342 279072586 429342440 472276684 558145172 590345855 697681465 944553368 1116290344 1180691710 1395362930 1534899223 2361383420 2790725860 3069798446 4722766840 5581451720 6139596892 7674496115 12279193784 15348992230 30697984460 61395968920
• Sum of all divisors σ(n): 162291457440
• Sum of proper divisors (its aliquot sum) s(n): 100895488520
• 61395968920 is an abundant number, because the sum of its proper divisors (100895488520) is greater than itself. Its abundance is 39499519600

Bases of 61395968920

• Binary: 111001001011011111000010001110011000₂
• Hexadecimal: 0xE4B7C2398
• Base-36: S7DKOT4

Squares and roots of 61395968920

• 61395968920 squared (61395968920²) is 3769464999625605966400
• 61395968920 cubed (61395968920³) is 231429955962041515549260964288000
• The square root of 61395968920 is 247782.0996763083
• The cube root of 61395968920 is 3944.9964722979

Scales and comparisons

• 61,395,968,920 seconds is equal to 1,952 years, 10 weeks, 3 days, 11 hours, 48 minutes, 40 seconds.
• To count from 1 to 61,395,968,920 would take you about three thousand, nine hundred 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 61395968920 cubic inches would be around 328.7 feet tall.

Recreational maths with 61395968920

• 61395968920 backwards is 02986959316
• The number of decimal digits it has is: 11
• The sum of 61395968920's digits is 58
• More coming soon!