155230020

Names of 155230020

• Cardinal: 155230020 can be written as One hundred fifty-five million, two hundred thirty thousand and twenty.

Scientific notation

• Scientific notation: 1.5523002 × 10⁸

Factors of 155230020

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 333

Divisors of 155230020

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 5 6 9 10 11 12 15 18 20 22 27 30 31 33 36 44 45 54 55 60 62 66 81 90 93 99 108 110 124 132 135 155 162 165 180 186 198 220 270 279 281 297 310 324 330 341 372 396 405 465 495 540 558 562 594 620 660 682 810 837 843 891 930 990 1023 1116 1124 1188 1364 1395 1405 1485 1620 1674 1686 1705 1782 1860 1980 2046 2511 2529 2790 2810 2970 3069 3091 3348 3372 3410 3564 4092 4185 4215 4455 5022 5058 5115 5580 5620 5940 6138 6182 6820 7587 8370 8430 8711 8910 9207 9273 10044 10116 10230 12276 12364 12555 12645 15174 15345 15455 16740 16860 17422 17820 18414 18546 20460 22761 25110 25290 26133 27621 27819 30348 30690 30910 34844 36828 37092 37935 43555 45522 46035 46365 50220 50580 52266 55242 55638 61380 61820 75870 78399 83457 87110 91044 92070 92730 95821 104532 110484 111276 113805 130665 138105 139095 151740 156798 166914 174220 184140 185460 191642 227610 235197 250371 261330 276210 278190 287463 313596 333828 383284 391995 417285 455220 470394 479105 500742 522660 552420 556380 574926 705591 783990 834570 862389 940788 958210 1001484 1149852 1175985 1251855 1411182 1437315 1567980 1669140 1724778 1916420 2351970 2503710 2587167 2822364 2874630 3449556 3527955 4311945 4703940 5007420 5174334 5749260 7055910 7761501 8623890 10348668 12935835 14111820 15523002 17247780 25871670 31046004 38807505 51743340 77615010 155230020
• Sum of all divisors σ(n): 550319616
• Sum of proper divisors (its aliquot sum) s(n): 395089596
• 155230020 is an abundant number, because the sum of its proper divisors (395089596) is greater than itself. Its abundance is 239859576

Bases of 155230020

• Binary: 1001010000001001111101000100₂
• Hexadecimal: 0x9409F44
• Base-36: 2KF490

Squares and roots of 155230020

• 155230020 squared (155230020²) is 24096359109200400
• 155230020 cubed (155230020³) is 3740478306448360276008000
• The square root of 155230020 is 12459.1339987977
• The cube root of 155230020 is 537.4341235293

Scales and comparisons

• 155,230,020 seconds is equal to 4 years, 48 weeks, 4 days, 15 hours, 27 minutes.
• To count from 1 to 155,230,020 would take you about seven 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 155230020 cubic inches would be around 44.8 feet tall.

Recreational maths with 155230020

• 155230020 backwards is 020032551
• 155230020 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 155230020's digits is 18
• More coming soon!