72403968

Names of 72403968

• Cardinal: 72403968 can be written as Seventy-two million, four hundred three thousand, nine hundred sixty-eight.

Scientific notation

• Scientific notation: 7.2403968 × 10⁷

Factors of 72403968

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 62

Divisors of 72403968

• Number of divisors d(n): 264
• Complete list of divisors:
  1 2 3 4 6 7 8 12 13 14 16 21 24 26 28 32 37 39 42 48 49 52 56 64 74 78 84 91 96 98 104 111 112 128 147 148 156 168 182 192 196 208 222 224 256 259 273 294 296 312 336 364 384 392 416 444 448 481 512 518 546 588 592 624 637 672 728 768 777 784 832 888 896 962 1024 1036 1092 1176 1184 1248 1274 1344 1443 1456 1536 1554 1568 1664 1776 1792 1813 1911 1924 2072 2184 2352 2368 2496 2548 2688 2886 2912 3072 3108 3136 3328 3367 3552 3584 3626 3822 3848 4144 4368 4704 4736 4992 5096 5376 5439 5772 5824 6216 6272 6656 6734 7104 7168 7252 7644 7696 8288 8736 9408 9472 9984 10101 10192 10752 10878 11544 11648 12432 12544 13312 13468 14208 14504 15288 15392 16576 17472 18816 18944 19968 20202 20384 21504 21756 23088 23296 23569 24864 25088 26936 28416 29008 30576 30784 33152 34944 37632 37888 39936 40404 40768 43512 46176 46592 47138 49728 50176 53872 56832 58016 61152 61568 66304 69888 70707 75264 80808 81536 87024 92352 93184 94276 99456 107744 113664 116032 122304 123136 132608 139776 141414 150528 161616 163072 174048 184704 188552 198912 215488 232064 244608 246272 265216 279552 282828 323232 326144 348096 369408 377104 397824 430976 464128 489216 492544 565656 646464 652288 696192 738816 754208 795648 861952 928256 978432 1131312 1292928 1392384 1477632 1508416 1723904 1856512 1956864 2262624 2585856 2784768 3016832 3447808 4525248 5171712 5569536 6033664 9050496 10343424 12067328 18100992 24134656 36201984 72403968
• Sum of all divisors σ(n): 248292912
• Sum of proper divisors (its aliquot sum) s(n): 175888944
• 72403968 is an abundant number, because the sum of its proper divisors (175888944) is greater than itself. Its abundance is 103484976

Bases of 72403968

• Binary: 100010100001100110000000000₂
• Hexadecimal: 0x450CC00
• Base-36: 173V9C

Squares and roots of 72403968

• 72403968 squared (72403968²) is 5242334582145024
• 72403968 cubed (72403968³) is 379565825330921689055232
• The square root of 72403968 is 8509.0521211237
• The cube root of 72403968 is 416.7933578123

Scales and comparisons

• 72,403,968 seconds is equal to 2 years, 15 weeks, 5 days, 12 minutes, 48 seconds.
• To count from 1 to 72,403,968 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 72403968 cubic inches would be around 34.7 feet tall.

Recreational maths with 72403968

• 72403968 backwards is 86930427
• 72403968 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 72403968's digits is 39
• More coming soon!