Base | Representation |
---|---|
bin | 11101000011011… |
… | …110111000000001 |
3 | 1020222020010122202 |
4 | 131003132320001 |
5 | 1444241432121 |
6 | 120211442545 |
7 | 15036163220 |
oct | 3503367001 |
9 | 1228203582 |
10 | 487452161 |
11 | 230177029 |
12 | 1172b6455 |
13 | 79cb0941 |
14 | 48a4acb7 |
15 | 2cbda40b |
hex | 1d0dee01 |
487452161 has 8 divisors (see below), whose sum is σ = 557222784. Its totient is φ = 417715200.
The previous prime is 487452149. The next prime is 487452167. The reversal of 487452161 is 161254784.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a de Polignac number, because none of the positive numbers 2k-487452161 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (487452167) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46721 + ... + 56193.
It is an arithmetic number, because the mean of its divisors is an integer number (69652848).
Almost surely, 2487452161 is an apocalyptic number.
It is an amenable number.
487452161 is a deficient number, since it is larger than the sum of its proper divisors (69770623).
487452161 is an equidigital number, since it uses as much as digits as its factorization.
487452161 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 16831.
The product of its digits is 53760, while the sum is 38.
The square root of 487452161 is about 22078.3187992202. The cubic root of 487452161 is about 787.0047133709.
The spelling of 487452161 in words is "four hundred eighty-seven million, four hundred fifty-two thousand, one hundred sixty-one".
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