1621385472

Names of 1621385472

• Cardinal: 1621385472 can be written as One billion, six hundred twenty-one million, three hundred eighty-five thousand, four hundred seventy-two.

Scientific notation

• Scientific notation: 1.621385472 × 10⁹

Factors of 1621385472

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 299

Divisors of 1621385472

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 17 21 24 28 32 34 42 48 51 56 64 68 84 96 102 112 113 119 128 136 157 168 192 204 224 226 238 256 272 314 336 339 357 384 408 448 452 471 476 544 628 672 678 714 768 791 816 896 904 942 952 1088 1099 1256 1344 1356 1428 1582 1632 1792 1808 1884 1904 1921 2176 2198 2373 2512 2669 2688 2712 2856 3164 3264 3297 3616 3768 3808 3842 4352 4396 4746 5024 5338 5376 5424 5712 5763 6328 6528 6594 7232 7536 7616 7684 8007 8792 9492 10048 10676 10848 11424 11526 12656 13056 13188 13447 14464 15072 15232 15368 16014 17584 17741 18683 18984 20096 21352 21696 22848 23052 25312 26376 26894 28928 30144 30464 30736 32028 35168 35482 37366 37968 40192 40341 42704 43392 45696 46104 50624 52752 53223 53788 56049 60288 61472 64056 70336 70964 74732 75936 80682 85408 86784 91392 92208 101248 105504 106446 107576 112098 120576 122944 124187 128112 140672 141928 149464 151872 161364 170816 184416 202496 211008 212892 215152 224196 245888 248374 256224 281344 283856 298928 301597 303744 322728 341632 368832 372561 422016 425784 430304 448392 491776 496748 512448 567712 597856 603194 607488 645456 683264 737664 745122 844032 851568 860608 896784 904791 993496 1024896 1135424 1195712 1206388 1290912 1475328 1490244 1703136 1721216 1793568 1809582 1986992 2049792 2111179 2270848 2391424 2412776 2581824 2980488 3406272 3442432 3587136 3619164 3973984 4222358 4541696 4782848 4825552 5163648 5960976 6333537 6812544 7174272 7238328 7947968 8444716 9651104 10327296 11921952 12667074 13625088 14348544 14476656 15895936 16889432 19302208 23843904 25334148 28953312 31791872 33778864 38604416 47687808 50668296 57906624 67557728 77208832 95375616 101336592 115813248 135115456 202673184 231626496 270230912 405346368 540461824 810692736 1621385472
• Sum of all divisors σ(n): 5301580032
• Sum of proper divisors (its aliquot sum) s(n): 3680194560
• 1621385472 is an abundant number, because the sum of its proper divisors (3680194560) is greater than itself. Its abundance is 2058809088

Bases of 1621385472

• Binary: 1100000101001000110000100000000₂
• Hexadecimal: 0x60A46100
• Base-36: QTBX1C

Squares and roots of 1621385472

• 1621385472 squared (1621385472²) is 2628890848812662784
• 1621385472 cubed (1621385472³) is 4262445429738599887612674048
• The square root of 1621385472 is 40266.4310809885
• The cube root of 1621385472 is 1174.7950080295

Scales and comparisons

• 1,621,385,472 seconds is equal to 51 years, 28 weeks, 6 days, 51 minutes, 12 seconds.
• To count from 1 to 1,621,385,472 would take you about one hundred 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 1621385472 cubic inches would be around 97.9 feet tall.

Recreational maths with 1621385472

• 1621385472 backwards is 2745831261
• The number of decimal digits it has is: 10
• The sum of 1621385472's digits is 39
• More coming soon!