155397820968

Names of 155397820968

• Cardinal: 155397820968 can be written as One hundred fifty-five billion, three hundred ninety-seven million, eight hundred twenty thousand, nine hundred sixty-eight.

Scientific notation

• Scientific notation: 1.55397820968 × 10¹¹

Factors of 155397820968

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 3941

Divisors of 155397820968

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 18 24 26 36 39 52 72 78 104 117 137 156 234 274 312 353 411 468 548 706 822 936 1059 1096 1233 1412 1644 1781 2118 2466 2824 3177 3288 3433 3562 4236 4589 4932 5343 6354 6866 7124 8472 9178 9864 10299 10686 12708 13732 13767 14248 16029 18356 20598 21372 25416 27464 27534 30897 32058 36712 41196 41301 42744 44629 48361 55068 61794 64116 82392 82602 89258 96722 110136 123588 128232 133887 145083 165204 178516 193444 247176 267774 290166 330408 357032 386888 401661 435249 470321 535548 580332 628693 803322 870498 940642 1071096 1160664 1211849 1257386 1410963 1606644 1740996 1881284 1886079 2423698 2514772 2821926 3213288 3481992 3635547 3762568 3772158 4232889 4847396 5029544 5643852 5658237 6114173 7271094 7544316 8465778 9694792 10906641 11287704 11316474 12228346 14542188 15088632 15754037 16931556 18342519 21813282 22632948 24456692 29084376 31508074 33863112 36685038 43626564 45265896 47262111 48913384 55027557 63016148 73370076 87253128 94524222 110055114 126032296 141786333 146740152 166023313 189048444 220110228 283572666 332046626 378096888 440220456 498069939 567145332 664093252 996139878 1134290664 1328186504 1494209817 1992279756 2158303069 2988419634 3984559512 4316606138 5976839268 6474909207 8633212276 11953678536 12949818414 17266424552 19424727621 25899636828 38849455242 51799273656 77698910484 155397820968
• Sum of all divisors σ(n): 457978706640
• Sum of proper divisors (its aliquot sum) s(n): 302580885672
• 155397820968 is an abundant number, because the sum of its proper divisors (302580885672) is greater than itself. Its abundance is 147183064704

Bases of 155397820968

• Binary: 10010000101110011011101001001000101000₂
• Hexadecimal: 0x242E6E9228
• Base-36: 1ZDZUM20

Squares and roots of 155397820968

• 155397820968 squared (155397820968²) is 24148482761602580457024
• 155397820968 cubed (155397820968³) is 3752621600836352022627431170079232
• The square root of 155397820968 is 394205.3030693525
• The cube root of 155397820968 is 5376.2770612485

Scales and comparisons

• 155,397,820,968 seconds is equal to 4,941 years, 8 weeks, 5 days, 21 hours, 22 minutes, 48 seconds.
• To count from 1 to 155,397,820,968 would take you about nine thousand, eight hundred eighty-two 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 155397820968 cubic inches would be around 448 feet tall.

Recreational maths with 155397820968

• 155397820968 backwards is 869028793551
• The number of decimal digits it has is: 12
• The sum of 155397820968's digits is 63
• More coming soon!