Base | Representation |
---|---|
bin | 11001010110100… |
… | …00011011000011 |
3 | 112211011112222102 |
4 | 30223100123003 |
5 | 413420303201 |
6 | 33034101015 |
7 | 5161426433 |
oct | 1453203303 |
9 | 484145872 |
10 | 212666051 |
11 | aa054174 |
12 | 5b27a76b |
13 | 350a0500 |
14 | 2035c2c3 |
15 | 13a0c26b |
hex | cad06c3 |
212666051 has 12 divisors (see below), whose sum is σ = 234638208. Its totient is φ = 192595104.
The previous prime is 212666033. The next prime is 212666053. The reversal of 212666051 is 150666212.
It is not a de Polignac number, because 212666051 - 26 = 212665987 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (212666053) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2915 + ... + 20828.
It is an arithmetic number, because the mean of its divisors is an integer number (19553184).
Almost surely, 2212666051 is an apocalyptic number.
212666051 is a deficient number, since it is larger than the sum of its proper divisors (21972157).
212666051 is a wasteful number, since it uses less digits than its factorization.
212666051 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 23822 (or 23809 counting only the distinct ones).
The product of its (nonzero) digits is 4320, while the sum is 29.
The square root of 212666051 is about 14583.0741272202. The cubic root of 212666051 is about 596.8969900654.
The spelling of 212666051 in words is "two hundred twelve million, six hundred sixty-six thousand, fifty-one".
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