Base | Representation |
---|---|
bin | 11101000101000… |
… | …110110111011001 |
3 | 1021000000202221110 |
4 | 131011012313121 |
5 | 1444344044410 |
6 | 120224530533 |
7 | 15042616101 |
oct | 3505066731 |
9 | 1230022843 |
10 | 487878105 |
11 | 230438050 |
12 | 117480a49 |
13 | 7a0cc790 |
14 | 48b1c201 |
15 | 2cc71720 |
hex | 1d146dd9 |
487878105 has 64 divisors (see below), whose sum is σ = 965422080. Its totient is φ = 206841600.
The previous prime is 487878103. The next prime is 487878187. The reversal of 487878105 is 501878784.
It is not a de Polignac number, because 487878105 - 21 = 487878103 is a prime.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (487878103) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 34770 + ... + 46740.
It is an arithmetic number, because the mean of its divisors is an integer number (15084720).
Almost surely, 2487878105 is an apocalyptic number.
It is an amenable number.
487878105 is a deficient number, since it is larger than the sum of its proper divisors (477543975).
487878105 is a wasteful number, since it uses less digits than its factorization.
487878105 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12022.
The product of its (nonzero) digits is 501760, while the sum is 48.
The square root of 487878105 is about 22087.9628983752. The cubic root of 487878105 is about 787.2338793415.
The spelling of 487878105 in words is "four hundred eighty-seven million, eight hundred seventy-eight thousand, one hundred five".
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