Base | Representation |
---|---|
bin | 1100010110100010110… |
… | …1101011101000110011 |
3 | 202021202021221021102002 |
4 | 3011220231223220303 |
5 | 11434101303000222 |
6 | 241253225044215 |
7 | 21221523652013 |
oct | 3055055535063 |
9 | 667667837362 |
10 | 212210203187 |
11 | 81aa8144614 |
12 | 3516492666b |
13 | 1701bba1188 |
14 | a3b19b9c43 |
15 | 57c03b7392 |
hex | 3168b6ba33 |
212210203187 has 2 divisors, whose sum is σ = 212210203188. Its totient is φ = 212210203186.
The previous prime is 212210203147. The next prime is 212210203201. The reversal of 212210203187 is 781302012212.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 212210203187 - 220 = 212209154611 is a prime.
It is not a weakly prime, because it can be changed into another prime (212210203147) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106105101593 + 106105101594.
It is an arithmetic number, because the mean of its divisors is an integer number (106105101594).
Almost surely, 2212210203187 is an apocalyptic number.
212210203187 is a deficient number, since it is larger than the sum of its proper divisors (1).
212210203187 is an equidigital number, since it uses as much as digits as its factorization.
212210203187 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 2688, while the sum is 29.
Adding to 212210203187 its reverse (781302012212), we get a palindrome (993512215399).
The spelling of 212210203187 in words is "two hundred twelve billion, two hundred ten million, two hundred three thousand, one hundred eighty-seven".
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