Base | Representation |
---|---|
bin | 10111111001111… |
… | …10000000001100 |
3 | 111222100002011101 |
4 | 23330332000030 |
5 | 402314010410 |
6 | 31522032444 |
7 | 4653331225 |
oct | 1374760014 |
9 | 458302141 |
10 | 200531980 |
11 | a3216710 |
12 | 571a8724 |
13 | 3271249c |
14 | 1c8c024c |
15 | 12911d3a |
hex | bf3e00c |
200531980 has 48 divisors (see below), whose sum is σ = 464186016. Its totient is φ = 72161280.
The previous prime is 200531959. The next prime is 200531999. The reversal of 200531980 is 89135002.
200531980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16642 + ... + 26038.
It is an arithmetic number, because the mean of its divisors is an integer number (9670542).
Almost surely, 2200531980 is an apocalyptic number.
200531980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 200531980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (232093008).
200531980 is an abundant number, since it is smaller than the sum of its proper divisors (263654036).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
200531980 is a wasteful number, since it uses less digits than its factorization.
200531980 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9514 (or 9512 counting only the distinct ones).
The product of its (nonzero) digits is 2160, while the sum is 28.
The square root of 200531980 is about 14160.9314665385. The cubic root of 200531980 is about 585.3215949145.
Adding to 200531980 its reverse (89135002), we get a palindrome (289666982).
The spelling of 200531980 in words is "two hundred million, five hundred thirty-one thousand, nine hundred eighty".
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