Base | Representation |
---|---|
bin | 1100010010110101010… |
… | …1100110000001011011 |
3 | 202012011212110120210111 |
4 | 3010231111212001123 |
5 | 11430031243023422 |
6 | 241010321425151 |
7 | 21155036441506 |
oct | 3045525460133 |
9 | 665155416714 |
10 | 211214032987 |
11 | 816368a7161 |
12 | 34b2719b1b7 |
13 | 16bc06a5259 |
14 | a31958813d |
15 | 5762be0a77 |
hex | 312d56605b |
211214032987 has 2 divisors, whose sum is σ = 211214032988. Its totient is φ = 211214032986.
The previous prime is 211214032973. The next prime is 211214033027. The reversal of 211214032987 is 789230412112.
It is an a-pointer prime, because the next prime (211214033027) can be obtained adding 211214032987 to its sum of digits (40).
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 211214032987 - 235 = 176854294619 is a prime.
It is a super-2 number, since 2×2112140329872 (a number of 23 digits) contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (211214032907) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105607016493 + 105607016494.
It is an arithmetic number, because the mean of its divisors is an integer number (105607016494).
Almost surely, 2211214032987 is an apocalyptic number.
211214032987 is a deficient number, since it is larger than the sum of its proper divisors (1).
211214032987 is an equidigital number, since it uses as much as digits as its factorization.
211214032987 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 48384, while the sum is 40.
The spelling of 211214032987 in words is "two hundred eleven billion, two hundred fourteen million, thirty-two thousand, nine hundred eighty-seven".
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