1397912220

Names of 1397912220

• Cardinal: 1397912220 can be written as One billion, three hundred ninety-seven million, nine hundred twelve thousand, two hundred twenty.

Scientific notation

• Scientific notation: 1.39791222 × 10⁹

Factors of 1397912220

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 975

Divisors of 1397912220

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 30 36 41 45 60 82 90 123 164 180 205 246 307 369 410 492 614 615 617 738 820 921 1228 1230 1234 1476 1535 1842 1845 1851 2460 2468 2763 3070 3085 3684 3690 3702 4605 5526 5553 6140 6170 7380 7404 9210 9255 11052 11106 12340 12587 13815 18420 18510 22212 25174 25297 27630 27765 37020 37761 50348 50594 55260 55530 62935 75522 75891 101188 111060 113283 125870 126485 151044 151782 188805 189419 226566 227673 251740 252970 303564 377610 378838 379455 453132 455346 505940 566415 568257 755220 757676 758910 910692 947095 1132830 1136514 1138365 1517820 1704771 1894190 2265660 2273028 2276730 2841285 3409542 3788380 4553460 5682570 6819084 7766179 8523855 11365140 15532358 17047710 23298537 31064716 34095420 38830895 46597074 69895611 77661790 93194148 116492685 139791222 155323580 232985370 279582444 349478055 465970740 698956110 1397912220
• Sum of all divisors σ(n): 4364968608
• Sum of proper divisors (its aliquot sum) s(n): 2967056388
• 1397912220 is an abundant number, because the sum of its proper divisors (2967056388) is greater than itself. Its abundance is 1569144168

Bases of 1397912220

• Binary: 1010011010100100111001010011100₂
• Hexadecimal: 0x5352729C
• Base-36: N4A3Z0

Squares and roots of 1397912220

• 1397912220 squared (1397912220²) is 1954158574825328400
• 1397912220 cubed (1397912220³) is 2731742151566110935873048000
• The square root of 1397912220 is 37388.6643248993
• The cube root of 1397912220 is 1118.1325758065

Scales and comparisons

• 1,397,912,220 seconds is equal to 44 years, 23 weeks, 2 days, 12 hours, 57 minutes.
• To count from 1 to 1,397,912,220 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 1397912220 cubic inches would be around 93.2 feet tall.

Recreational maths with 1397912220

• 1397912220 backwards is 0222197931
• 1397912220 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 1397912220's digits is 36
• More coming soon!