Base | Representation |
---|---|
bin | 11101000100010… |
… | …001001100010000 |
3 | 1020222121121100220 |
4 | 131010101030100 |
5 | 1444320031011 |
6 | 120220113040 |
7 | 15041012121 |
oct | 3504211420 |
9 | 1228547326 |
10 | 487658256 |
11 | 2302a7958 |
12 | 117395780 |
13 | 7a0536a7 |
14 | 48aa2048 |
15 | 2cc2b506 |
hex | 1d111310 |
487658256 has 80 divisors (see below), whose sum is σ = 1333248000. Its totient is φ = 153166464.
The previous prime is 487658251. The next prime is 487658257. The reversal of 487658256 is 652856784.
It is a happy number.
It is a junction number, because it is equal to n+sod(n) for n = 487658199 and 487658208.
It is not an unprimeable number, because it can be changed into a prime (487658251) 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, 180145 + ... + 182831.
It is an arithmetic number, because the mean of its divisors is an integer number (16665600).
Almost surely, 2487658256 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 487658256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (666624000).
487658256 is an abundant number, since it is smaller than the sum of its proper divisors (845589744).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
487658256 is a wasteful number, since it uses less digits than its factorization.
487658256 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2916 (or 2910 counting only the distinct ones).
The product of its digits is 3225600, while the sum is 51.
The square root of 487658256 is about 22082.9856677035. The cubic root of 487658256 is about 787.1156130623.
The spelling of 487658256 in words is "four hundred eighty-seven million, six hundred fifty-eight thousand, two hundred fifty-six".
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