Base | Representation |
---|---|
bin | 11101000101011… |
… | …101110001010101 |
3 | 1021000012112122021 |
4 | 131011131301111 |
5 | 1444410100200 |
6 | 120230533141 |
7 | 15043456450 |
oct | 3505356125 |
9 | 1230175567 |
10 | 487971925 |
11 | 2304a1591 |
12 | 1175071b1 |
13 | 7a1333ac |
14 | 48b44497 |
15 | 2cc8e41a |
hex | 1d15dc55 |
487971925 has 24 divisors (see below), whose sum is σ = 692366400. Its totient is φ = 334202880.
The previous prime is 487971923. The next prime is 487971977. The reversal of 487971925 is 529179784.
It is not a de Polignac number, because 487971925 - 21 = 487971923 is a prime.
It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (487971923) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 245586 + ... + 247564.
It is an arithmetic number, because the mean of its divisors is an integer number (28848600).
Almost surely, 2487971925 is an apocalyptic number.
It is an amenable number.
487971925 is a deficient number, since it is larger than the sum of its proper divisors (204394475).
487971925 is a wasteful number, since it uses less digits than its factorization.
487971925 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3405 (or 3400 counting only the distinct ones).
The product of its digits is 1270080, while the sum is 52.
The square root of 487971925 is about 22090.0865774673. The cubic root of 487971925 is about 787.2843383584.
The spelling of 487971925 in words is "four hundred eighty-seven million, nine hundred seventy-one thousand, nine hundred twenty-five".
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