Base | Representation |
---|---|
bin | 11101000101000… |
… | …101000111111011 |
3 | 1021000000102011020 |
4 | 131011011013323 |
5 | 1444343332341 |
6 | 120224433523 |
7 | 15042556230 |
oct | 3505050773 |
9 | 1230012136 |
10 | 487870971 |
11 | 230432755 |
12 | 1174788a3 |
13 | 7a0c9463 |
14 | 48b19787 |
15 | 2cc6e566 |
hex | 1d1451fb |
487870971 has 16 divisors (see below), whose sum is σ = 745042944. Its totient is φ = 278175744.
The previous prime is 487870969. The next prime is 487870993. The reversal of 487870971 is 179078784.
It is not a de Polignac number, because 487870971 - 21 = 487870969 is a prime.
It is not an unprimeable number, because it can be changed into a prime (487870921) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15366 + ... + 34811.
It is an arithmetic number, because the mean of its divisors is an integer number (46565184).
Almost surely, 2487870971 is an apocalyptic number.
487870971 is a deficient number, since it is larger than the sum of its proper divisors (257171973).
487870971 is a wasteful number, since it uses less digits than its factorization.
487870971 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 50650.
The product of its (nonzero) digits is 790272, while the sum is 51.
The square root of 487870971 is about 22087.8014071116. The cubic root of 487870971 is about 787.2300422124.
The spelling of 487870971 in words is "four hundred eighty-seven million, eight hundred seventy thousand, nine hundred seventy-one".
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