Base | Representation |
---|---|
bin | 111011010101011100… |
… | …0111101000100000000 |
3 | 110011220012021222112002 |
4 | 1312222320331010000 |
5 | 4041424300432410 |
6 | 134311512323132 |
7 | 12130420360121 |
oct | 1665270750400 |
9 | 404805258462 |
10 | 127421108480 |
11 | 4a047991826 |
12 | 208410a34a8 |
13 | c028812713 |
14 | 624aba0048 |
15 | 34ab7527a5 |
hex | 1daae3d100 |
127421108480 has 36 divisors (see below), whose sum is σ = 305213376972. Its totient is φ = 50968442880.
The previous prime is 127421108473. The next prime is 127421108497. The reversal of 127421108480 is 84801124721.
It can be written as a sum of positive squares in 2 ways, for example, as 91339346176 + 36081762304 = 302224^2 + 189952^2 .
It is a super-2 number, since 2×1274211084802 (a number of 23 digits) contains 22 as substring.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49772591 + ... + 49775150.
Almost surely, 2127421108480 is an apocalyptic number.
127421108480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
127421108480 is an abundant number, since it is smaller than the sum of its proper divisors (177792268492).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
127421108480 is an frugal number, since it uses more digits than its factorization.
127421108480 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 99547762 (or 99547748 counting only the distinct ones).
The product of its (nonzero) digits is 28672, while the sum is 38.
The spelling of 127421108480 in words is "one hundred twenty-seven billion, four hundred twenty-one million, one hundred eight thousand, four hundred eighty".
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