31438998656

Names of 31438998656

• Cardinal: 31438998656 can be written as Thirty-one billion, four hundred thirty-eight million, nine hundred ninety-eight thousand, six hundred fifty-six.

Scientific notation

• Scientific notation: 3.1438998656 × 10¹⁰

Factors of 31438998656

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 2042

Divisors of 31438998656

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 4 8 13 16 26 32 52 59 64 104 118 128 179 208 236 358 416 472 716 767 832 944 1432 1534 1664 1789 1888 2327 2864 3068 3578 3776 4654 5728 6136 7156 7552 9308 10561 11456 12272 14312 18616 21122 22912 23257 24544 28624 37232 42244 46514 49088 57248 74464 84488 93028 98176 105551 114496 137293 148928 168976 186056 211102 228992 274586 297856 320231 337952 372112 422204 549172 640462 675904 744224 844408 1098344 1280924 1351808 1372163 1488448 1688816 2196688 2561848 2744326 2976896 3377632 4163003 4393376 5123696 5488652 6755264 8326006 8786752 10247392 10977304 13510528 16652012 17573504 18893629 20494784 21954608 33304024 37787258 40989568 43909216 66608048 75574516 87818432 133216096 151149032 175636864 245617177 266432192 302298064 491234354 532864384 604596128 982468708 1209192256 1964937416 2418384512 3929874832 7859749664 15719499328 31438998656
• Sum of all divisors σ(n): 69015240000
• Sum of proper divisors (its aliquot sum) s(n): 37576241344
• 31438998656 is an abundant number, because the sum of its proper divisors (37576241344) is greater than itself. Its abundance is 6137242688

Bases of 31438998656

• Binary: 11101010001111010010000110010000000₂
• Hexadecimal: 0x751E90C80
• Base-36: EFXYUM8

Squares and roots of 31438998656

• 31438998656 squared (31438998656²) is 988410636491969806336
• 31438998656 cubed (31438998656³) is 31074640672247143296190084284416
• The square root of 31438998656 is 177310.4583943091
• The cube root of 31438998656 is 3156.1398230907

Scales and comparisons

• 31,438,998,656 seconds is equal to 999 years, 34 weeks, 3 days, 7 hours, 10 minutes, 56 seconds.
• To count from 1 to 31,438,998,656 would take you about one thousand, nine 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 31438998656 cubic inches would be around 263 feet tall.

Recreational maths with 31438998656

• 31438998656 backwards is 65689983413
• The number of decimal digits it has is: 11
• The sum of 31438998656's digits is 62
• More coming soon!