Base | Representation |
---|---|
bin | 1100010111001101001… |
… | …0110001111110000000 |
3 | 202022012122221002002122 |
4 | 3011303102301332000 |
5 | 11434432222404413 |
6 | 241323005303412 |
7 | 21226110445136 |
oct | 3056322617600 |
9 | 668178832078 |
10 | 212387700608 |
11 | 82089357aa6 |
12 | 351b4264b68 |
13 | 170498a9c35 |
14 | a3cb3c1756 |
15 | 57d0c79108 |
hex | 31734b1f80 |
212387700608 has 32 divisors (see below), whose sum is σ = 445385397000. Its totient is φ = 100604699136.
The previous prime is 212387700607. The next prime is 212387700667. The reversal of 212387700608 is 806007783212.
It is a happy number.
It is a tau number, because it is divible by the number of its divisors (32).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (212387700607) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43662803 + ... + 43667666.
Almost surely, 2212387700608 is an apocalyptic number.
It is an amenable number.
212387700608 is an abundant number, since it is smaller than the sum of its proper divisors (232997696392).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
212387700608 is an equidigital number, since it uses as much as digits as its factorization.
212387700608 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 87330502 (or 87330490 counting only the distinct ones).
The product of its (nonzero) digits is 225792, while the sum is 44.
The spelling of 212387700608 in words is "two hundred twelve billion, three hundred eighty-seven million, seven hundred thousand, six hundred eight".
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