31991741397

Names of 31991741397

• Cardinal: 31991741397 can be written as Thirty-one billion, nine hundred ninety-one million, seven hundred forty-one thousand, three hundred ninety-seven.

Scientific notation

• Scientific notation: 3.1991741397 × 10¹⁰

Factors of 31991741397

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 189

Divisors of 31991741397

• Number of divisors d(n): 384
• Complete list of divisors:
  1 3 7 9 11 17 19 21 27 33 51 57 61 63 71 77 99 119 121 133 153 171 183 187 189 209 213 231 297 323 357 363 399 427 459 497 513 549 561 627 639 671 693 781 847 969 1037 1071 1089 1159 1197 1207 1281 1309 1349 1463 1491 1647 1683 1881 1917 2013 2057 2079 2261 2299 2343 2541 2907 3111 3213 3267 3477 3553 3591 3621 3843 3927 4047 4331 4389 4473 4697 5049 5467 5643 6039 6171 6783 6897 7029 7259 7381 7623 8113 8449 8591 8721 9333 9443 10431 10659 10863 11407 11529 11781 12141 12749 12993 13167 13277 13419 14091 14399 14839 16093 16401 18117 18513 19703 20349 20691 21087 21777 22143 22869 22933 24339 24871 25347 25773 27999 28329 30317 31293 31977 32589 34221 35343 36423 38247 38979 39083 39501 39831 42273 43197 44517 47641 48279 49203 51667 55539 59109 60137 61047 62073 65331 66429 68799 73017 73627 74613 76041 77319 79849 82289 84987 89243 90951 92939 95931 102663 103873 114741 116937 117249 119493 125477 126819 129591 133551 137921 140239 142923 144837 146047 147609 155001 160531 163229 177327 180411 195993 199287 206397 216733 219051 220881 223839 228123 231957 239547 246867 252263 254961 267729 272853 273581 278817 307989 311619 333487 344223 351747 358479 376431 388773 400653 413763 420717 428769 434511 438141 465003 481593 489687 515389 524051 531981 541233 576023 619191 650199 662643 671517 718641 740601 756789 803187 809897 818559 820743 836451 878339 905179 934857 981673 1000461 1022329 1055241 1129293 1142603 1241289 1262151 1286307 1314423 1395009 1398913 1444779 1469061 1517131 1546167 1572153 1623699 1728069 1765841 1950597 1987929 2155923 2221803 2270367 2384063 2409561 2429691 2462229 2509353 2635017 2715537 2774893 2804571 2945019 3001383 3066987 3387879 3427809 3668357 3723867 3786453 3943269 4196739 4334337 4407183 4551393 4638501 4716459 5184207 5297523 5669279 5851791 6336253 6811101 7152189 7289073 7386687 7905051 8146611 8324679 8835057 8908867 9004149 9200961 9792391 9956969 10283427 11005071 12590217 13654179 13915503 14149377 15388043 15552621 15892569 16688441 17007837 19008759 19424251 21456567 21867219 23715153 24439833 24974037 26505171 26726601 27602883 29377173 29870907 30850281 33015213 37770651 40962537 46164129 47677707 50065323 51023511 57026277 58272753 62362069 64369701 69698783 74922111 80179803 88131519 89612721 99045639 107716301 138492387 150195969 153070533 169268473 171078831 174818259 187086207 209096349 240539409 264394557 268838163 323148903 415477161 450587907 507805419 524454777 561258621 627289047 969446709 1184879311 1523416257 1683775863 1881867141 2908340127 3554637933 4570248771 10663913799 31991741397
• Sum of all divisors σ(n): 68395622400
• Sum of proper divisors (its aliquot sum) s(n): 36403881003
• 31991741397 is an abundant number, because the sum of its proper divisors (36403881003) is greater than itself. Its abundance is 4412139606

Bases of 31991741397

• Binary: 11101110010110110110011101111010101₂
• Hexadecimal: 0x772DB3BD5
• Base-36: EP321N9

Squares and roots of 31991741397

• 31991741397 squared (31991741397²) is 1023471517612523511609
• 31991741397 cubed (31991741397³) is 32742636118654983031977455377773
• The square root of 31991741397 is 178862.3532133019
• The cube root of 31991741397 is 3174.5289613731

Scales and comparisons

• 31,991,741,397 seconds is equal to 1,017 years, 12 weeks, 2 days, 18 hours, 49 minutes, 57 seconds.
• To count from 1 to 31,991,741,397 would take you about two thousand and thirty-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 31991741397 cubic inches would be around 264.5 feet tall.

Recreational maths with 31991741397

• 31991741397 backwards is 79314719913
• The number of decimal digits it has is: 11
• The sum of 31991741397's digits is 54
• More coming soon!