72546138

Names of 72546138

• Cardinal: 72546138 can be written as Seventy-two million, five hundred forty-six thousand, one hundred thirty-eight.

Scientific notation

• Scientific notation: 7.2546138 × 10⁷

Factors of 72546138

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 235

Divisors of 72546138

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 6 7 9 14 18 21 27 31 41 42 54 62 63 82 93 123 126 151 186 189 217 246 279 287 302 369 378 434 453 558 574 651 738 837 861 906 1057 1107 1271 1302 1359 1674 1722 1953 2114 2214 2542 2583 2718 3171 3813 3906 4077 4681 5166 5859 6191 6342 7626 7749 8154 8897 9362 9513 11439 11718 12382 14043 15498 17794 18573 19026 22878 26691 28086 28539 32767 34317 37146 42129 43337 53382 55719 57078 65534 68634 80073 84258 86674 98301 111438 126387 130011 160146 167157 191921 196602 240219 252774 260022 294903 334314 383842 390033 480438 575763 589806 780066 884709 1151526 1170099 1343447 1727289 1769418 2340198 2686894 3454578 4030341 5181867 8060682 10363734 12091023 24182046 36273069 72546138
• Sum of all divisors σ(n): 196116480
• Sum of proper divisors (its aliquot sum) s(n): 123570342
• 72546138 is an abundant number, because the sum of its proper divisors (123570342) is greater than itself. Its abundance is 51024204

Bases of 72546138

• Binary: 100010100101111011101011010₂
• Hexadecimal: 0x452F75A
• Base-36: 176WYI

Squares and roots of 72546138

• 72546138 squared (72546138²) is 5262942138715044
• 72546138 cubed (72546138³) is 381806126681236724700072
• The square root of 72546138 is 8517.4020687061
• The cube root of 72546138 is 417.0659799329

Scales and comparisons

• 72,546,138 seconds is equal to 2 years, 15 weeks, 6 days, 15 hours, 42 minutes, 18 seconds.
• To count from 1 to 72,546,138 would take you about 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 72546138 cubic inches would be around 34.8 feet tall.

Recreational maths with 72546138

• 72546138 backwards is 83164527
• The number of decimal digits it has is: 8
• The sum of 72546138's digits is 36
• More coming soon!