Base | Representation |
---|---|
bin | 11101000010110… |
… | …001111101001100 |
3 | 1020221212210021100 |
4 | 131002301331030 |
5 | 1444220040142 |
6 | 120203503100 |
7 | 15034465626 |
oct | 3502617514 |
9 | 1227783240 |
10 | 487268172 |
11 | 230060876 |
12 | 117227a90 |
13 | 79c47c81 |
14 | 489ddc16 |
15 | 2cba0b4c |
hex | 1d0b1f4c |
487268172 has 72 divisors (see below), whose sum is σ = 1254839040. Its totient is φ = 159395040.
The previous prime is 487268123. The next prime is 487268189. The reversal of 487268172 is 271862784.
487268172 is a `hidden beast` number, since 487 + 26 + 81 + 72 = 666.
It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 968473 + ... + 968975.
It is an arithmetic number, because the mean of its divisors is an integer number (17428320).
Almost surely, 2487268172 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 487268172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (627419520).
487268172 is an abundant number, since it is smaller than the sum of its proper divisors (767570868).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
487268172 is a wasteful number, since it uses less digits than its factorization.
487268172 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 963 (or 958 counting only the distinct ones).
The product of its digits is 301056, while the sum is 45.
The square root of 487268172 is about 22074.1516711288. The cubic root of 487268172 is about 786.9056825026.
The spelling of 487268172 in words is "four hundred eighty-seven million, two hundred sixty-eight thousand, one hundred seventy-two".
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