155115345920

Names of 155115345920

• Cardinal: 155115345920 can be written as One hundred fifty-five billion, one hundred fifteen million, three hundred forty-five thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.5511534592 × 10¹¹

Factors of 155115345920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 7072

Divisors of 155115345920

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 4 5 8 10 16 20 32 40 41 53 64 80 82 106 128 160 164 205 212 256 265 320 328 410 424 512 530 640 656 820 848 1024 1060 1280 1312 1640 1696 2048 2120 2173 2560 2624 3280 3392 4240 4346 5120 5248 6560 6784 6971 8480 8692 10240 10496 10865 13120 13568 13942 16960 17384 20992 21730 26240 27136 27884 33920 34768 34855 41984 43460 52480 54272 55768 67840 69536 69710 83968 86920 104960 108544 111536 135680 139072 139420 173840 209920 223072 271360 278144 278840 285811 347680 369463 419840 446144 542720 556288 557680 571622 695360 738926 892288 1112576 1115360 1143244 1390720 1429055 1477852 1784576 1847315 2225152 2230720 2286488 2781440 2858110 2955704 3569152 3694630 4450304 4461440 4572976 5562880 5716220 5911408 7138304 7389260 8922880 9145952 11125760 11432440 11822816 14276608 14778520 15147983 17845760 18291904 22251520 22864880 23645632 29557040 30295966 35691520 36583808 45729760 47291264 59114080 60591932 71383040 73167616 75739915 91459520 94582528 118228160 121183864 146335232 151479830 182919040 189165056 236456320 242367728 292670464 302959660 365838080 378330112 472912640 484735456 585340928 605919320 731676160 756660224 945825280 969470912 1211838640 1463352320 1891650560 1938941824 2423677280 2926704640 3783301120 3877883648 4847354560 7755767296 9694709120 15511534592 19389418240 31023069184 38778836480 77557672960 155115345920
• Sum of all divisors σ(n): 388513026720
• Sum of proper divisors (its aliquot sum) s(n): 233397680800
• 155115345920 is an abundant number, because the sum of its proper divisors (233397680800) is greater than itself. Its abundance is 78282334880

Bases of 155115345920

• Binary: 10010000011101100110000101100000000000₂
• Hexadecimal: 0x241D985800
• Base-36: 1Z9BO6WW

Squares and roots of 155115345920

• 155115345920 squared (155115345920²) is 24060770539881260646400
• 155115345920 cubed (155115345920³) is 3732194745395426900892018802688000
• The square root of 155115345920 is 393846.8559224511
• The cube root of 155115345920 is 5373.0175019489

Scales and comparisons

• 155,115,345,920 seconds is equal to 4,932 years, 9 weeks, 5 days, 12 hours, 5 minutes, 20 seconds.
• To count from 1 to 155,115,345,920 would take you about nine thousand, eight hundred sixty-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 155115345920 cubic inches would be around 447.8 feet tall.

Recreational maths with 155115345920

• 155115345920 backwards is 029543511551
• 155115345920 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 155115345920's digits is 41
• More coming soon!