161728429408

Names of 161728429408

• Cardinal: 161728429408 can be written as One hundred sixty-one billion, seven hundred twenty-eight million, four hundred twenty-nine thousand, four hundred eight.

Scientific notation

• Scientific notation: 1.61728429408 × 10¹¹

Factors of 161728429408

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 1193

Divisors of 161728429408

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 4 7 8 13 14 16 17 26 28 32 34 49 52 56 61 68 91 98 104 112 119 122 136 182 196 208 221 224 238 244 272 343 364 392 416 427 442 476 488 544 637 686 728 784 793 833 854 884 952 976 1037 1093 1274 1372 1456 1547 1568 1586 1666 1708 1768 1904 1952 2074 2186 2548 2744 2912 2989 3094 3172 3332 3416 3536 3808 4148 4372 4459 5096 5488 5551 5831 5978 6188 6344 6664 6832 7072 7259 7651 8296 8744 8918 10192 10829 10976 11102 11662 11956 12376 12688 13328 13481 13664 14209 14518 15302 16592 17488 17836 18581 20384 20923 21658 22204 23324 23912 24752 25376 26656 26962 28418 29036 30604 33184 34976 35672 37162 38857 41846 43316 44408 46648 47824 49504 50813 53557 53924 56836 58072 61208 66673 71344 74324 75803 77714 83692 86632 88816 93296 94367 95648 99463 101626 107114 107848 113672 116144 122416 130067 133346 142688 148648 151606 155428 167384 173264 177632 186592 188734 198926 203252 214228 215696 227344 232288 241553 244832 260134 266692 271999 297296 303212 310856 334768 346528 355691 374899 377468 397852 406504 428456 431392 454688 466711 483106 520268 533384 543998 594592 606424 621712 660569 669536 696241 711382 749798 754936 795704 813008 856912 866749 910469 933422 966212 1040536 1066768 1087996 1133441 1212848 1243424 1321138 1392482 1422764 1499596 1509872 1591408 1626016 1690871 1713824 1733498 1820938 1866844 1932424 2081072 2133536 2175992 2266882 2425696 2642276 2784964 2845528 2999192 3019744 3182816 3266977 3381742 3466996 3641876 3733688 3864848 4162144 4351984 4533764 4623983 4873687 5284552 5569928 5691056 5998384 6067243 6373283 6533954 6763484 6933992 7283752 7467376 7729696 7934087 8703968 9067528 9247966 9747374 10569104 11139856 11382112 11836097 11996768 12134486 12746566 13067908 13526968 13867984 14567504 14734733 14934752 15868174 18135056 18495932 19494748 21138208 22279712 22868839 23672194 24268972 25493132 26135816 27053936 27735968 29135008 29469466 31736348 36270112 36991864 38989496 42470701 45737678 47344388 48537944 50986264 52271632 54107872 55538609 58938932 63472696 73983728 77978992 82852679 84941402 91475356 94688776 97075888 101972528 103143131 104543264 111077218 117877864 126945392 147967456 155957984 165705358 169882804 182950712 189377552 194151776 203945056 206286262 222154436 235755728 253890784 297294907 331410716 339765608 365901424 378755104 388770263 412572524 444308872 471511456 594589814 662821432 679531216 722001917 731802848 777540526 825145048 888617744 1189179628 1325642864 1359062432 1444003834 1555081052 1650290096 1777235488 2378359256 2651285728 2888007668 3110162104 3300580192 4756718512 5054013419 5776015336 6220324208 9513437024 10108026838 11552030672 12440648416 20216053676 23104061344 40432107352 80864214704 161728429408
• Sum of all divisors σ(n): 430734931200
• Sum of proper divisors (its aliquot sum) s(n): 269006501792
• 161728429408 is an abundant number, because the sum of its proper divisors (269006501792) is greater than itself. Its abundance is 107278072384

Bases of 161728429408

• Binary: 10010110100111110000111111110101100000₂
• Hexadecimal: 0x25A7C3FD60
• Base-36: 22AOXISG

Squares and roots of 161728429408

• 161728429408 squared (161728429408²) is 26156084878778439230464
• 161728429408 cubed (161728429408³) is 4230182526907175046356514867085312
• The square root of 161728429408 is 402154.7331662279
• The cube root of 161728429408 is 5448.3139234309

Scales and comparisons

• 161,728,429,408 seconds is equal to 5,142 years, 24 weeks, 19 hours, 43 minutes, 28 seconds.
• To count from 1 to 161,728,429,408 would take you about ten thousand, two hundred eighty-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 161728429408 cubic inches would be around 454 feet tall.

Recreational maths with 161728429408

• 161728429408 backwards is 804924827161
• 161728429408 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 161728429408's digits is 52
• More coming soon!