Base | Representation |
---|---|
bin | 11101000001110… |
… | …111100111100100 |
3 | 1020221102122111021 |
4 | 131001313213210 |
5 | 1444134413340 |
6 | 120154420524 |
7 | 15032452156 |
oct | 3501674744 |
9 | 1227378437 |
10 | 487029220 |
11 | 22aa08297 |
12 | 117131744 |
13 | 79b93292 |
14 | 4897aad6 |
15 | 2cb54e4a |
hex | 1d0779e4 |
487029220 has 48 divisors (see below), whose sum is σ = 1058577408. Its totient is φ = 188023680.
The previous prime is 487029211. The next prime is 487029227. The reversal of 487029220 is 22920784.
It is a super-2 number, since 2×4870292202 = 474394922267616800, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (487029227) 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, 301134 + ... + 302746.
It is an arithmetic number, because the mean of its divisors is an integer number (22053696).
Almost surely, 2487029220 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 487029220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (529288704).
487029220 is an abundant number, since it is smaller than the sum of its proper divisors (571548188).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
487029220 is a wasteful number, since it uses less digits than its factorization.
487029220 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2140 (or 2138 counting only the distinct ones).
The product of its (nonzero) digits is 16128, while the sum is 34.
The square root of 487029220 is about 22068.7385230783. The cubic root of 487029220 is about 786.7770309425. Note that the first 3 decimals are identical.
The spelling of 487029220 in words is "four hundred eighty-seven million, twenty-nine thousand, two hundred twenty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.078 sec. • engine limits •