128434974720

Names of 128434974720

• Cardinal: 128434974720 can be written as One hundred twenty-eight billion, four hundred thirty-four million, nine hundred seventy-four thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 1.2843497472 × 10¹¹

Factors of 128434974720

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 424

Divisors of 128434974720

• Number of divisors d(n): 312
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 13 15 16 20 24 26 30 32 39 40 48 52 60 64 65 78 80 96 104 120 128 130 156 160 192 195 208 240 256 260 312 320 384 390 401 416 480 512 520 624 640 768 780 802 832 960 1024 1040 1203 1248 1280 1536 1560 1604 1664 1920 2005 2048 2080 2406 2496 2560 3072 3120 3208 3328 3840 4010 4096 4160 4812 4992 5120 5213 6015 6144 6240 6416 6656 7680 8020 8320 9624 9984 10240 10426 12030 12288 12480 12832 13312 15360 15639 16040 16640 19248 19968 20480 20852 24060 24960 25664 26065 26624 30720 31278 32080 33280 38496 39936 41704 48120 49920 51328 52130 53248 61440 62556 64160 66560 76992 78195 79872 83408 96240 99840 102656 104260 125112 128320 133120 153984 156390 159744 160801 166816 192480 199680 205312 208520 250224 256640 266240 307968 312780 321602 333632 384960 399360 410624 417040 482403 500448 513280 615936 625560 643204 667264 769920 798720 804005 821248 834080 964806 1000896 1026560 1231872 1251120 1286408 1334528 1539840 1608010 1642496 1668160 1929612 2001792 2053120 2090413 2412015 2463744 2502240 2572816 2669056 3079680 3216020 3336320 3859224 4003584 4106240 4180826 4824030 4927488 5004480 5145632 5338112 6159360 6271239 6432040 6672640 7718448 8007168 8212480 8361652 9648060 10008960 10291264 10452065 10676224 12318720 12542478 12864080 13345280 15436896 16014336 16723304 19296120 20017920 20582528 20904130 21352448 24637440 25084956 25728160 26690560 30873792 31356195 32028672 33446608 38592240 40035840 41165056 41808260 50169912 51456320 53381120 61747584 62712390 64057344 66893216 77184480 80071680 82330112 83616520 100339824 102912640 106762240 123495168 125424780 133786432 154368960 160143360 164660224 167233040 200679648 205825280 246990336 250849560 267572864 308737920 320286720 329320448 334466080 401359296 411650560 493980672 501699120 535145728 617475840 658640896 668932160 802718592 823301120 987961344 1003398240 1070291456 1234951680 1337864320 1605437184 1646602240 1975922688 2006796480 2140582912 2469903360 2675728640 3210874368 3293204480 4013592960 4281165824 4939806720 5351457280 6421748736 8027185920 8562331648 9879613440 10702914560 12843497472 16054371840 21405829120 25686994944 32108743680 42811658240 64217487360 128434974720
• Sum of all divisors σ(n): 443659027728
• Sum of proper divisors (its aliquot sum) s(n): 315224053008
• 128434974720 is an abundant number, because the sum of its proper divisors (315224053008) is greater than itself. Its abundance is 186789078288

Bases of 128434974720

• Binary: 1110111100111010100100011000000000000₂
• Hexadecimal: 0x1DE7523000
• Base-36: 1N02V8QO

Squares and roots of 128434974720

• 128434974720 squared (128434974720²) is 16495542731327039078400
• 128434974720 cubed (128434974720³) is 2118604613690668016086756098048000
• The square root of 128434974720 is 358378.2564832861
• The cube root of 128434974720 is 5045.3864307437

Scales and comparisons

• 128,434,974,720 seconds is equal to 4,083 years, 43 weeks, 2 days, 21 hours, 52 minutes.
• To count from 1 to 128,434,974,720 would take you about eight thousand, one hundred sixty-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 128434974720 cubic inches would be around 420.4 feet tall.

Recreational maths with 128434974720

• 128434974720 backwards is 027479434821
• The number of decimal digits it has is: 12
• The sum of 128434974720's digits is 51
• More coming soon!