139447872

Names of 139447872

• Cardinal: 139447872 can be written as One hundred thirty-nine million, four hundred forty-seven thousand, eight hundred seventy-two.

Scientific notation

• Scientific notation: 1.39447872 × 10⁸

Factors of 139447872

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 170

Divisors of 139447872

• Number of divisors d(n): 224
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 17 18 24 27 32 34 36 47 48 51 54 64 68 72 94 96 101 102 108 136 141 144 153 188 192 202 204 216 272 282 288 303 306 376 404 408 423 432 459 544 564 576 606 612 752 799 808 816 846 864 909 918 1088 1128 1212 1224 1269 1504 1598 1616 1632 1692 1717 1728 1818 1836 2256 2397 2424 2448 2538 2727 3008 3196 3232 3264 3384 3434 3636 3672 4512 4747 4794 4848 4896 5076 5151 5454 6392 6464 6768 6868 7191 7272 7344 9024 9494 9588 9696 9792 10152 10302 10908 12784 13536 13736 14241 14382 14544 14688 15453 18988 19176 19392 20304 20604 21573 21816 25568 27072 27472 28482 28764 29088 29376 30906 37976 38352 40608 41208 42723 43146 43632 46359 51136 54944 56964 57528 58176 61812 75952 76704 80699 81216 82416 85446 86292 87264 92718 109888 113928 115056 123624 128169 151904 153408 161398 164832 170892 172584 174528 185436 227856 230112 242097 247248 256338 303808 322796 329664 341784 345168 370872 455712 460224 484194 494496 512676 645592 683568 690336 726291 741744 911424 968388 988992 1025352 1291184 1367136 1380672 1452582 1483488 1936776 2050704 2178873 2582368 2734272 2905164 2966976 3873552 4101408 4357746 5164736 5810328 7747104 8202816 8715492 11620656 15494208 17430984 23241312 34861968 46482624 69723936 139447872
• Sum of all divisors σ(n): 447690240
• Sum of proper divisors (its aliquot sum) s(n): 308242368
• 139447872 is an abundant number, because the sum of its proper divisors (308242368) is greater than itself. Its abundance is 168794496

Bases of 139447872

• Binary: 1000010011111100111001000000₂
• Hexadecimal: 0x84FCE40
• Base-36: 2B0UO0

Squares and roots of 139447872

• 139447872 squared (139447872²) is 19445709005328384
• 139447872 cubed (139447872³) is 2711662740324279809998848
• The square root of 139447872 is 11808.8048506189
• The cube root of 139447872 is 518.5659105445

Scales and comparisons

• 139,447,872 seconds is equal to 4 years, 22 weeks, 3 days, 23 hours, 31 minutes, 12 seconds.
• To count from 1 to 139,447,872 would take you about six 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 139447872 cubic inches would be around 43.2 feet tall.

Recreational maths with 139447872

• 139447872 backwards is 278744931
• The number of decimal digits it has is: 9
• The sum of 139447872's digits is 45
• More coming soon!