Base | Representation |
---|---|
bin | 1100010101110101100… |
… | …0001110111011101110 |
3 | 202021021001002112111200 |
4 | 3011131120032323232 |
5 | 11433204111444324 |
6 | 241222313030330 |
7 | 21214024346535 |
oct | 3053530167356 |
9 | 667231075450 |
10 | 212020031214 |
11 | 81a0a8645a2 |
12 | 351110b53a6 |
13 | 16cbb678394 |
14 | a39463531c |
15 | 57ad84eec9 |
hex | 315d60eeee |
212020031214 has 72 divisors (see below), whose sum is σ = 488333172600. Its totient is φ = 66469101312.
The previous prime is 212020031213. The next prime is 212020031287. The reversal of 212020031214 is 412130020212.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (212020031213) by changing a digit.
It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 7752937 + ... + 7780235.
It is an arithmetic number, because the mean of its divisors is an integer number (6782405175).
Almost surely, 2212020031214 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 212020031214, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (244166586300).
212020031214 is an abundant number, since it is smaller than the sum of its proper divisors (276313141386).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
212020031214 is a wasteful number, since it uses less digits than its factorization.
212020031214 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 28834 (or 28814 counting only the distinct ones).
The product of its (nonzero) digits is 192, while the sum is 18.
Adding to 212020031214 its reverse (412130020212), we get a palindrome (624150051426).
The spelling of 212020031214 in words is "two hundred twelve billion, twenty million, thirty-one thousand, two hundred fourteen".
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