31430393856

Names of 31430393856

• Cardinal: 31430393856 can be written as Thirty-one billion, four hundred thirty million, three hundred ninety-three thousand, eight hundred fifty-six.

Scientific notation

• Scientific notation: 3.1430393856 × 10¹⁰

Factors of 31430393856

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 18
• Sum of prime factors: 5005

Divisors of 31430393856

• Number of divisors d(n): 180
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 32 36 43 48 64 72 86 96 128 129 144 172 192 256 258 288 344 384 387 512 516 576 688 768 774 1024 1032 1152 1376 1536 1548 2048 2064 2304 2752 3072 3096 4096 4128 4608 4957 5504 6144 6192 8192 8256 9216 9914 11008 12288 12384 14871 16384 16512 18432 19828 22016 24576 24768 29742 33024 36864 39656 44032 44613 49152 49536 59484 66048 73728 79312 88064 89226 99072 118968 132096 147456 158624 176128 178452 198144 213151 237936 264192 317248 352256 356904 396288 426302 475872 528384 634496 639453 704512 713808 792576 852604 951744 1056768 1268992 1278906 1427616 1585152 1705208 1903488 1918359 2113536 2537984 2557812 2855232 3170304 3410416 3806976 3836718 5075968 5115624 5710464 6340608 6820832 7613952 7673436 10151936 10231248 11420928 13641664 15227904 15346872 20303872 20462496 22841856 27283328 30455808 30693744 40607744 40924992 45683712 54566656 60911616 61387488 81215488 81849984 91367424 109133312 121823232 122774976 163699968 182734848 218266624 243646464 245549952 327399936 365469696 436533248 491099904 654799872 730939392 873066496 982199808 1309599744 1746132992 1964399616 2619199488 3492265984 3928799232 5238398976 7857598464 10476797952 15715196928 31430393856
• Sum of all divisors σ(n): 92926425592
• Sum of proper divisors (its aliquot sum) s(n): 61496031736
• 31430393856 is an abundant number, because the sum of its proper divisors (61496031736) is greater than itself. Its abundance is 30065637880

Bases of 31430393856

• Binary: 11101010001011001011100000000000000₂
• Hexadecimal: 0x75165C000
• Base-36: EFSUF40

Squares and roots of 31430393856

• 31430393856 squared (31430393856²) is 987869657943282548736
• 31430393856 cubed (31430393856³) is 31049132427549369416263994966016
• The square root of 31430393856 is 177286.1919496271
• The cube root of 31430393856 is 3155.8518534651

Scales and comparisons

• 31,430,393,856 seconds is equal to 999 years, 20 weeks, 1 day, 16 hours, 57 minutes, 36 seconds.
• To count from 1 to 31,430,393,856 would take you about one thousand, nine hundred ninety-eight 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 31430393856 cubic inches would be around 263 feet tall.

Recreational maths with 31430393856

• 31430393856 backwards is 65839303413
• The number of decimal digits it has is: 11
• The sum of 31430393856's digits is 45
• More coming soon!