Base | Representation |
---|---|
bin | 11101000011111… |
… | …000111100111001 |
3 | 1020222102120011121 |
4 | 131003320330321 |
5 | 1444303341334 |
6 | 120214025241 |
7 | 15040116502 |
oct | 3503707471 |
9 | 1228376147 |
10 | 487558969 |
11 | 23023a2a7 |
12 | 117348221 |
13 | 7a01a441 |
14 | 48a77ba9 |
15 | 2cc0bdb4 |
hex | 1d0f8f39 |
487558969 has 4 divisors (see below), whose sum is σ = 491398144. Its totient is φ = 483719796.
The previous prime is 487558931. The next prime is 487558987. The reversal of 487558969 is 969855784.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 487558969 - 215 = 487526201 is a prime.
It is a super-2 number, since 2×4875589692 = 475427496504685922, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (487558919) by changing a digit.
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, 1919397 + ... + 1919650.
It is an arithmetic number, because the mean of its divisors is an integer number (122849536).
Almost surely, 2487558969 is an apocalyptic number.
It is an amenable number.
487558969 is a deficient number, since it is larger than the sum of its proper divisors (3839175).
487558969 is a wasteful number, since it uses less digits than its factorization.
487558969 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3839174.
The product of its digits is 21772800, while the sum is 61.
The square root of 487558969 is about 22080.7375103279. The cubic root of 487558969 is about 787.0621906425.
The spelling of 487558969 in words is "four hundred eighty-seven million, five hundred fifty-eight thousand, nine hundred sixty-nine".
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