398978125
398,978,125 is an odd composite number composed of five prime numbers multiplied together.
398978125 is an odd composite number. It is composed of five distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 398978125:
55 × 7 × 13 × 23 × 61
(5 × 5 × 5 × 5 × 5 × 7 × 13 × 23 × 61)See below for interesting mathematical facts about the number 398978125 from the Numbermatics database.
Names of 398978125
- Cardinal: 398978125 can be written as Three hundred ninety-eight million, nine hundred seventy-eight thousand, one hundred twenty-five.
Scientific notation
- Scientific notation: 3.98978125 × 108
Factors of 398978125
Divisors of 398978125
- Number of divisors d(n): 96
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Complete list of divisors:
1 5 7 13 23 25 35 61 65 91 115 125 161 175 299 305 325 427 455 575 625 793 805 875 1403 1495 1525 1625 2093 2135 2275 2875 3125 3965 4025 4375 5551 7015 7475 7625 8125 9821 10465 10675 11375 14375 18239 19825 20125 21875 27755 35075 37375 38125 40625 49105 52325 53375 56875 71875 91195 99125 100625 127673 138775 175375 186875 190625 245525 261625 266875 284375 455975 495625 503125 638365 693875 876875 934375 1227625 1308125 1334375 2279875 2478125 3191825 3469375 4384375 6138125 6540625 11399375 15959125 17346875 30690625 56996875 79795625 398978125
- Sum of all divisors σ(n): 650958336
- Sum of proper divisors (its aliquot sum) s(n): 251980211
- 398978125 is a deficient number, because the sum of its proper divisors (251980211) is less than itself. Its deficiency is 146997914
Bases of 398978125
- Binary: 101111100011111101100010011012
- Hexadecimal: 0x17C7EC4D
- Base-36: 6LJHHP
Squares and roots of 398978125
- 398978125 squared (3989781252) is 159183544228515625
- 398978125 cubed (3989781253) is 63510752007147735595703125
-
The
square root of 398978125 is 19974.4367880549 -
The
cube root of 398978125 is 736.1783280523
Scales and comparisons
How big is 398978125?- 398,978,125 seconds is equal to 12 years, 35 weeks, 4 days, 19 hours, 15 minutes, 25 seconds.
-
To count from 1 to 398,978,125 would take you about nineteen 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 398978125 cubic inches would be around 61.3 feet tall.
Recreational maths with 398978125
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