Base | Representation |
---|---|
bin | 11001100010100… |
… | …10101001011111 |
3 | 112221010221001021 |
4 | 30301102221133 |
5 | 414321414111 |
6 | 33132025011 |
7 | 5211035554 |
oct | 1461225137 |
9 | 487127037 |
10 | 214248031 |
11 | aaa34798 |
12 | 5b902167 |
13 | 355055aa |
14 | 20650a2b |
15 | 13c20d71 |
hex | cc52a5f |
214248031 has 2 divisors, whose sum is σ = 214248032. Its totient is φ = 214248030.
The previous prime is 214248029. The next prime is 214248053. The reversal of 214248031 is 130842412.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 214248031 - 21 = 214248029 is a prime.
It is a super-2 number, since 2×2142480312 = 91804437574753922, which contains 22 as substring.
Together with 214248029, it forms a pair of twin primes.
It is a junction number, because it is equal to n+sod(n) for n = 214247987 and 214248005.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (214248061) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107124015 + 107124016.
It is an arithmetic number, because the mean of its divisors is an integer number (107124016).
Almost surely, 2214248031 is an apocalyptic number.
214248031 is a deficient number, since it is larger than the sum of its proper divisors (1).
214248031 is an equidigital number, since it uses as much as digits as its factorization.
214248031 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 1536, while the sum is 25.
The square root of 214248031 is about 14637.2139083912. The cubic root of 214248031 is about 598.3734007579.
The spelling of 214248031 in words is "two hundred fourteen million, two hundred forty-eight thousand, thirty-one".
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