Base | Representation |
---|---|
bin | 11001010011000… |
… | …01110110011100 |
3 | 112210022112201020 |
4 | 30221201312130 |
5 | 413311310043 |
6 | 33020244140 |
7 | 5154532140 |
oct | 1451416634 |
9 | 483275636 |
10 | 212213148 |
11 | a9874974 |
12 | 5b0a0650 |
13 | 34c72314 |
14 | 20281220 |
15 | 1396ce83 |
hex | ca61d9c |
212213148 has 48 divisors (see below), whose sum is σ = 566926080. Its totient is φ = 60522624.
The previous prime is 212213143. The next prime is 212213149. The reversal of 212213148 is 841312212.
212213148 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (212213143) 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, 52048 + ... + 55976.
It is an arithmetic number, because the mean of its divisors is an integer number (11810960).
Almost surely, 2212213148 is an apocalyptic number.
212213148 is a gapful number since it is divisible by the number (28) formed by its first and last digit.
It is an amenable number.
212213148 is an abundant number, since it is smaller than the sum of its proper divisors (354712932).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
212213148 is a wasteful number, since it uses less digits than its factorization.
212213148 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4586 (or 4584 counting only the distinct ones).
The product of its digits is 768, while the sum is 24.
The square root of 212213148 is about 14567.5374720644. The cubic root of 212213148 is about 596.4729628635.
The spelling of 212213148 in words is "two hundred twelve million, two hundred thirteen thousand, one hundred forty-eight".
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