155456312640

Names of 155456312640

• Cardinal: 155456312640 can be written as One hundred fifty-five billion, four hundred fifty-six million, three hundred twelve thousand, six hundred forty.

Scientific notation

• Scientific notation: 1.5545631264 × 10¹¹

Factors of 155456312640

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 3445454

Divisors of 155456312640

• Number of divisors d(n): 112
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 47 48 60 64 80 94 96 120 141 160 188 192 235 240 282 320 376 470 480 564 705 752 940 960 1128 1410 1504 1880 2256 2820 3008 3760 4512 5640 7520 9024 11280 15040 22560 45120 3445397 6890794 10336191 13781588 17226985 20672382 27563176 34453970 41344764 51680955 55126352 68907940 82689528 103361910 110252704 137815880 161933659 165379056 206723820 220505408 275631760 323867318 330758112 413447640 485800977 551263520 647734636 661516224 809668295 826895280 971601954 1102527040 1295469272 1619336590 1653790560 1943203908 2429004885 2590938544 3238673180 3307581120 3886407816 4858009770 5181877088 6477346360 7772815632 9716019540 10363754176 12954692720 15545631264 19432039080 25909385440 31091262528 38864078160 51818770880 77728156320 155456312640
• Sum of all divisors σ(n): 504075508992
• Sum of proper divisors (its aliquot sum) s(n): 348619196352
• 155456312640 is an abundant number, because the sum of its proper divisors (348619196352) is greater than itself. Its abundance is 193162883712

Bases of 155456312640

• Binary: 10010000110001111010110001010101000000₂
• Hexadecimal: 0x2431EB1540
• Base-36: 1ZEYOAIO

Squares and roots of 155456312640

• 155456312640 squared (155456312640²) is 24166665139625423769600
• 155456312640 cubed (155456312640³) is 3756860651411799130019424927744000
• The square root of 155456312640 is 394279.4854414823
• The cube root of 155456312640 is 5376.9515194135

Scales and comparisons

• 155,456,312,640 seconds is equal to 4,943 years, 1 week, 3 days, 21 hours, 4 minutes.
• To count from 1 to 155,456,312,640 would take you about nine thousand, eight hundred eighty-six 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 155456312640 cubic inches would be around 448.1 feet tall.

Recreational maths with 155456312640

• 155456312640 backwards is 046213654551
• The number of decimal digits it has is: 12
• The sum of 155456312640's digits is 42
• More coming soon!