18457720128

Names of 18457720128

• Cardinal: 18457720128 can be written as Eighteen billion, four hundred fifty-seven million, seven hundred twenty thousand, one hundred twenty-eight.

Scientific notation

• Scientific notation: 1.8457720128 × 10¹⁰

Factors of 18457720128

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 507

Divisors of 18457720128

• Number of divisors d(n): 252
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 81 96 108 113 144 162 192 216 226 243 288 324 339 389 432 452 486 576 648 678 729 778 864 904 972 1017 1167 1296 1356 1458 1556 1728 1808 1944 2034 2187 2334 2592 2712 2916 3051 3112 3501 3616 3888 4068 4374 4668 5184 5424 5832 6102 6224 6561 7002 7232 7776 8136 8748 9153 9336 10503 10848 11664 12204 12448 13122 14004 15552 16272 17496 18306 18672 21006 21696 23328 24408 24896 26244 27459 28008 31509 32544 34992 36612 37344 42012 43957 46656 48816 52488 54918 56016 63018 65088 69984 73224 74688 82377 84024 87914 94527 97632 104976 109836 112032 126036 131871 139968 146448 164754 168048 175828 189054 195264 209952 219672 224064 247131 252072 263742 283581 292896 329508 336096 351656 378108 395613 419904 439344 494262 504144 527484 567162 585792 659016 672192 703312 741393 756216 791226 850743 878688 988524 1008288 1054968 1134324 1186839 1318032 1406624 1482786 1512432 1582452 1701486 1757376 1977048 2016576 2109936 2268648 2373678 2552229 2636064 2813248 2965572 3024864 3164904 3402972 3560517 3954096 4219872 4537296 4747356 5104458 5272128 5931144 6049728 6329808 6805944 7121034 7908192 8439744 9074592 9494712 10208916 10681551 11862288 12659616 13611888 14242068 15816384 18149184 18989424 20417832 21363102 23724576 25319232 27223776 28484136 32044653 37978848 40835664 42726204 47449152 54447552 56968272 64089306 75957696 81671328 85452408 96133959 113936544 128178612 163342656 170904816 192267918 227873088 256357224 288401877 341809632 384535836 512714448 576803754 683619264 769071672 1025428896 1153607508 1538143344 2050857792 2307215016 3076286688 4614430032 6152573376 9228860064 18457720128
• Sum of all divisors σ(n): 55566419220
• Sum of proper divisors (its aliquot sum) s(n): 37108699092
• 18457720128 is an abundant number, because the sum of its proper divisors (37108699092) is greater than itself. Its abundance is 18650978964

Bases of 18457720128

• Binary: 10001001100001010100111010101000000₂
• Hexadecimal: 0x44C2A7540
• Base-36: 8H99000

Squares and roots of 18457720128

• 18457720128 squared (18457720128²) is 340687432323576336384
• 18457720128 cubed (18457720128³) is 6288313276955512753019455537152
• The square root of 18457720128 is 135859.1922837759
• The cube root of 18457720128 is 2642.7699027037

Scales and comparisons

• 18,457,720,128 seconds is equal to 586 years, 46 weeks, 5 days, 28 minutes, 48 seconds.
• To count from 1 to 18,457,720,128 would take you about one thousand, one hundred seventy-three 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 18457720128 cubic inches would be around 220.2 feet tall.

Recreational maths with 18457720128

• 18457720128 backwards is 82102775481
• The number of decimal digits it has is: 11
• The sum of 18457720128's digits is 45
• More coming soon!