Base | Representation |
---|---|
bin | 11101000101011… |
… | …100010000110001 |
3 | 1021000012020011101 |
4 | 131011130100301 |
5 | 1444404400440 |
6 | 120230444401 |
7 | 15043432441 |
oct | 3505342061 |
9 | 1230166141 |
10 | 487965745 |
11 | 230497983 |
12 | 117503701 |
13 | 7a130637 |
14 | 48b42121 |
15 | 2cc8c69a |
hex | 1d15c431 |
487965745 has 8 divisors (see below), whose sum is σ = 605750760. Its totient is φ = 376911360.
The previous prime is 487965743. The next prime is 487965749. The reversal of 487965745 is 547569784.
It can be written as a sum of positive squares in 4 ways, for example, as 33039504 + 454926241 = 5748^2 + 21329^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 487965745 - 21 = 487965743 is a prime.
It is a super-2 number, since 2×4879657452 = 476221136586810050, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (487965743) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1682496 + ... + 1682785.
It is an arithmetic number, because the mean of its divisors is an integer number (75718845).
Almost surely, 2487965745 is an apocalyptic number.
It is an amenable number.
487965745 is a deficient number, since it is larger than the sum of its proper divisors (117785015).
487965745 is a wasteful number, since it uses less digits than its factorization.
487965745 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3365315.
The product of its digits is 8467200, while the sum is 55.
The square root of 487965745 is about 22089.9466952729. The cubic root of 487965745 is about 787.2810147808.
The spelling of 487965745 in words is "four hundred eighty-seven million, nine hundred sixty-five thousand, seven hundred forty-five".
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