Base | Representation |
---|---|
bin | 11001010100010… |
… | …11101010001000 |
3 | 112210122020121121 |
4 | 30222023222020 |
5 | 413332300032 |
6 | 33024045024 |
7 | 5156144323 |
oct | 1452135210 |
9 | 483566547 |
10 | 212384392 |
11 | a99815a0 |
12 | 5b163774 |
13 | 3500224c |
14 | 202c77ba |
15 | 139a3a97 |
hex | ca8ba88 |
212384392 has 32 divisors (see below), whose sum is σ = 453314880. Its totient is φ = 92340160.
The previous prime is 212384363. The next prime is 212384401. The reversal of 212384392 is 293483212.
It is a happy number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50443 + ... + 54490.
It is an arithmetic number, because the mean of its divisors is an integer number (14166090).
Almost surely, 2212384392 is an apocalyptic number.
212384392 is a gapful number since it is divisible by the number (22) formed by its first and last digit.
It is an amenable number.
212384392 is an abundant number, since it is smaller than the sum of its proper divisors (240930488).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
212384392 is a wasteful number, since it uses less digits than its factorization.
212384392 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 104973 (or 104969 counting only the distinct ones).
The product of its digits is 20736, while the sum is 34.
The square root of 212384392 is about 14573.4138759592. The cubic root of 212384392 is about 596.6333597018.
The spelling of 212384392 in words is "two hundred twelve million, three hundred eighty-four thousand, three hundred ninety-two".
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