Base | Representation |
---|---|
bin | 11101000101001… |
… | …100011011010111 |
3 | 1021000001221012020 |
4 | 131011030123113 |
5 | 1444400312022 |
6 | 120225224223 |
7 | 15043042365 |
oct | 3505143327 |
9 | 1230057166 |
10 | 487900887 |
11 | 230453181 |
12 | 117492073 |
13 | 7a109c66 |
14 | 48b26635 |
15 | 2cc7835c |
hex | 1d14c6d7 |
487900887 has 4 divisors (see below), whose sum is σ = 650534520. Its totient is φ = 325267256.
The previous prime is 487900877. The next prime is 487900921. The reversal of 487900887 is 788009784.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 487900887 - 26 = 487900823 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (487900877) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81316812 + ... + 81316817.
It is an arithmetic number, because the mean of its divisors is an integer number (162633630).
Almost surely, 2487900887 is an apocalyptic number.
487900887 is a deficient number, since it is larger than the sum of its proper divisors (162633633).
487900887 is a wasteful number, since it uses less digits than its factorization.
487900887 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 162633632.
The product of its (nonzero) digits is 903168, while the sum is 51.
The square root of 487900887 is about 22088.4786031089. The cubic root of 487900887 is about 787.2461327322.
The spelling of 487900887 in words is "four hundred eighty-seven million, nine hundred thousand, eight hundred eighty-seven".
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