188421391872

Names of 188421391872

• Cardinal: 188421391872 can be written as One hundred eighty-eight billion, four hundred twenty-one million, three hundred ninety-one thousand, eight hundred seventy-two.

Scientific notation

• Scientific notation: 1.88421391872 × 10¹¹

Factors of 188421391872

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 1338

Divisors of 188421391872

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 42 48 49 56 63 64 72 84 96 97 98 112 126 128 144 147 168 192 194 196 224 252 256 288 291 294 336 343 384 388 392 441 448 504 512 576 582 588 672 679 686 768 776 784 873 882 896 1008 1029 1152 1164 1176 1229 1344 1358 1372 1536 1552 1568 1746 1764 1792 2016 2037 2058 2304 2328 2352 2458 2688 2716 2744 3087 3104 3136 3492 3528 3584 3687 4032 4074 4116 4608 4656 4704 4753 4916 5376 5432 5488 6111 6174 6208 6272 6984 7056 7374 8064 8148 8232 8603 9312 9408 9506 9832 10752 10864 10976 11061 12222 12348 12416 12544 13968 14112 14259 14748 16128 16296 16464 17206 18624 18816 19012 19664 21728 21952 22122 24444 24696 24832 25088 25809 27936 28224 28518 29496 32256 32592 32928 33271 34412 37248 37632 38024 39328 42777 43456 43904 44244 48888 49392 49664 51618 55872 56448 57036 58992 60221 65184 65856 66542 68824 74496 75264 76048 77427 78656 85554 86912 87808 88488 97776 98784 99813 103236 111744 112896 114072 117984 119213 120442 130368 131712 133084 137648 148992 152096 154854 157312 171108 173824 175616 176976 180663 195552 197568 199626 206472 223488 225792 228144 235968 238426 240884 260736 263424 266168 275296 299439 304192 309708 314624 342216 347648 353952 357639 361326 391104 395136 399252 412944 421547 446976 456288 471936 476852 481768 521472 526848 532336 541989 550592 598878 608384 619416 629248 684432 707904 715278 722652 782208 790272 798504 825888 834491 843094 912576 943872 953704 963536 1042944 1064672 1072917 1083978 1101184 1197756 1216768 1238832 1264641 1368864 1415808 1430556 1445304 1564416 1580544 1597008 1651776 1668982 1686188 1825152 1887744 1907408 1927072 2129344 2145834 2167956 2202368 2395512 2433536 2477664 2503473 2529282 2737728 2831616 2861112 2890608 3128832 3194016 3303552 3337964 3372376 3650304 3793923 3814816 3854144 4258688 4291668 4335912 4404736 4791024 4955328 5006946 5058564 5475456 5663232 5722224 5781216 5841437 6388032 6607104 6675928 6744752 7300608 7510419 7587846 7629632 7708288 8517376 8583336 8671824 9582048 9910656 10013892 10117128 10950912 11444448 11562432 11682874 12776064 13214208 13351856 13489504 15020838 15175692 15259264 15416576 17034752 17166672 17343648 17524311 19164096 19821312 20027784 20234256 21901824 22888896 23124864 23365748 25552128 26703712 26979008 30041676 30351384 30518528 30833152 34333344 34687296 35048622 38328192 39642624 40055568 40468512 40890059 45777792 46249728 46731496 51104256 52572933 53407424 53958016 60083352 60702768 61037056 68666688 69374592 70097244 76656384 80111136 80937024 81780118 91555584 92499456 93462992 105145866 106814848 107916032 120166704 121405536 122670177 137333376 138749184 140194488 153312768 160222272 161874048 163560236 183111168 186925984 210291732 213629696 215832064 240333408 242811072 245340354 274666752 277498368 280388976 320444544 323748096 327120472 368010531 373851968 420583464 427259392 480666816 485622144 490680708 549333504 560777952 640889088 647496192 654240944 736021062 747703936 841166928 961333632 971244288 981361416 1121555904 1281778176 1308481888 1472042124 1495407872 1682333856 1922667264 1942488576 1962722832 2243111808 2616963776 2944084248 2990815744 3364667712 3845334528 3925445664 4486223616 5233927552 5888168496 6729335424 7850891328 8972447232 10467855104 11776336992 13458670848 15701782656 20935710208 23552673984 26917341696 31403565312 47105347968 62807130624 94210695936 188421391872
• Sum of all divisors σ(n): 641224584000
• Sum of proper divisors (its aliquot sum) s(n): 452803192128
• 188421391872 is an abundant number, because the sum of its proper divisors (452803192128) is greater than itself. Its abundance is 264381800256

Bases of 188421391872

• Binary: 10101111011110110010100100011000000000₂
• Hexadecimal: 0x2BDECA4600
• Base-36: 2EK58CG0

Squares and roots of 188421391872

• 188421391872 squared (188421391872²) is 35502620914981787664384
• 188421391872 cubed (188421391872³) is 6689453247904846609253993281486848
• The square root of 188421391872 is 434075.3297205451
• The cube root of 188421391872 is 5732.9312787229

Scales and comparisons

• 188,421,391,872 seconds is equal to 5,991 years, 11 weeks, 2 days, 3 hours, 31 minutes, 12 seconds.
• To count from 1 to 188,421,391,872 would take you about eleven thousand, nine 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 188421391872 cubic inches would be around 477.7 feet tall.

Recreational maths with 188421391872

• 188421391872 backwards is 278193124881
• The number of decimal digits it has is: 12
• The sum of 188421391872's digits is 54
• More coming soon!