Base | Representation |
---|---|
bin | 11001011100110… |
… | …01000111010010 |
3 | 112212201022121000 |
4 | 30232121013102 |
5 | 414123104312 |
6 | 33103442430 |
7 | 5201422143 |
oct | 1456310722 |
9 | 485638530 |
10 | 213488082 |
11 | aa565835 |
12 | 5b5b6416 |
13 | 352ca712 |
14 | 204d3aca |
15 | 13b20adc |
hex | cb991d2 |
213488082 has 32 divisors (see below), whose sum is σ = 490780800. Its totient is φ = 68708304.
The previous prime is 213488069. The next prime is 213488087. The reversal of 213488082 is 280884312.
It is a happy number.
213488082 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a super-2 number, since 2×2134880822 = 91154322312077448, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (213488087) 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, 66598 + ... + 69729.
It is an arithmetic number, because the mean of its divisors is an integer number (15336900).
Almost surely, 2213488082 is an apocalyptic number.
213488082 is an abundant number, since it is smaller than the sum of its proper divisors (277292718).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
213488082 is a wasteful number, since it uses less digits than its factorization.
213488082 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 136367 (or 136361 counting only the distinct ones).
The product of its (nonzero) digits is 24576, while the sum is 36.
The square root of 213488082 is about 14611.2313649466. The cubic root of 213488082 is about 597.6650753314.
The spelling of 213488082 in words is "two hundred thirteen million, four hundred eighty-eight thousand, eighty-two".
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