1390971904

Names of 1390971904

• Cardinal: 1390971904 can be written as One billion, three hundred ninety million, nine hundred seventy-one thousand, nine hundred four.

Scientific notation

• Scientific notation: 1.390971904 × 10⁹

Factors of 1390971904

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 4783

Divisors of 1390971904

• Number of divisors d(n): 88
• Complete list of divisors:
  1 2 4 7 8 14 16 28 32 41 56 64 82 112 128 164 224 256 287 328 448 512 574 656 896 1024 1148 1312 1792 2296 2624 3584 4592 4733 5248 7168 9184 9466 10496 18368 18932 20992 33131 36736 37864 41984 66262 73472 75728 132524 146944 151456 194053 265048 293888 302912 388106 530096 605824 776212 1060192 1211648 1358371 1552424 2120384 2423296 2716742 3104848 4240768 4846592 5433484 6209696 8481536 10866968 12419392 16963072 21733936 24838784 33926144 43467872 49677568 86935744 99355136 173871488 198710272 347742976 695485952 1390971904
• Sum of all divisors σ(n): 3256007328
• Sum of proper divisors (its aliquot sum) s(n): 1865035424
• 1390971904 is an abundant number, because the sum of its proper divisors (1865035424) is greater than itself. Its abundance is 474063520

Bases of 1390971904

• Binary: 1010010111010001000110000000000₂
• Hexadecimal: 0x52E88C00
• Base-36: N05CSG

Squares and roots of 1390971904

• 1390971904 squared (1390971904²) is 1934802837717385216
• 1390971904 cubed (1390971904³) is 2691256387044354327800971264
• The square root of 1390971904 is 37295.7357347995
• The cube root of 1390971904 is 1116.2790804377

Scales and comparisons

• 1,390,971,904 seconds is equal to 44 years, 11 weeks, 6 days, 5 hours, 5 minutes, 4 seconds.
• To count from 1 to 1,390,971,904 would take you about eighty-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 1390971904 cubic inches would be around 93 feet tall.

Recreational maths with 1390971904

• 1390971904 backwards is 4091790931
• The number of decimal digits it has is: 10
• The sum of 1390971904's digits is 43
• More coming soon!