172145740

Names of 172145740

• Cardinal: 172145740 can be written as One hundred seventy-two million, one hundred forty-five thousand, seven hundred forty.

Scientific notation

• Scientific notation: 1.7214574 × 10⁸

Factors of 172145740

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 145

Divisors of 172145740

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 5 10 13 17 20 26 29 34 52 58 65 68 79 85 116 130 145 158 170 221 260 289 290 316 340 377 395 442 493 578 580 754 790 884 986 1027 1105 1156 1343 1445 1508 1580 1885 1972 2054 2210 2291 2465 2686 2890 3757 3770 4108 4420 4582 4930 5135 5372 5780 6409 6715 7514 7540 8381 9164 9860 10270 11455 12818 13430 15028 16762 17459 18785 20540 22831 22910 25636 26860 29783 32045 33524 34918 37570 38947 41905 45662 45820 59566 64090 69836 75140 77894 83810 87295 91324 108953 114155 119132 128180 148915 155788 167620 174590 194735 217906 228310 296803 297830 349180 389470 435812 456620 506311 544765 593606 595660 662099 778940 1012622 1089530 1187212 1324198 1484015 2025244 2179060 2531555 2648396 2968030 3310495 5063110 5936060 6620990 8607287 10126220 13241980 17214574 34429148 43036435 86072870 172145740
• Sum of all divisors σ(n): 433238400
• Sum of proper divisors (its aliquot sum) s(n): 261092660
• 172145740 is an abundant number, because the sum of its proper divisors (261092660) is greater than itself. Its abundance is 88946920

Bases of 172145740

• Binary: 1010010000101011110001001100₂
• Hexadecimal: 0xA42BC4C
• Base-36: 2UHOI4

Squares and roots of 172145740

• 172145740 squared (172145740²) is 29634155800147600
• 172145740 cubed (172145740³) is 5101393679491700711224000
• The square root of 172145740 is 13120.4321575169
• The cube root of 172145740 is 556.2868066373

Scales and comparisons

• 172,145,740 seconds is equal to 5 years, 24 weeks, 4 days, 10 hours, 15 minutes, 40 seconds.
• To count from 1 to 172,145,740 would take you about eight 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 172145740 cubic inches would be around 46.4 feet tall.

Recreational maths with 172145740

• 172145740 backwards is 047541271
• The number of decimal digits it has is: 9
• The sum of 172145740's digits is 31
• More coming soon!