Base | Representation |
---|---|
bin | 10000011001001… |
… | …001100000111111 |
3 | 201011111212112101 |
4 | 100121021200333 |
5 | 1030401344111 |
6 | 43142445531 |
7 | 6546461665 |
oct | 2031114077 |
9 | 634455471 |
10 | 275028031 |
11 | 1312786a3 |
12 | 781338a7 |
13 | 44c965a5 |
14 | 28752c35 |
15 | 19229bc1 |
hex | 1064983f |
275028031 has 2 divisors, whose sum is σ = 275028032. Its totient is φ = 275028030.
The previous prime is 275028029. The next prime is 275028049. The reversal of 275028031 is 130820572.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 275028031 - 21 = 275028029 is a prime.
It is a super-2 number, since 2×2750280312 = 151280835671473922, which contains 22 as substring.
Together with 275028029, it forms a pair of twin primes.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (275028071) 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 as a sum of consecutive naturals, namely, 137514015 + 137514016.
It is an arithmetic number, because the mean of its divisors is an integer number (137514016).
Almost surely, 2275028031 is an apocalyptic number.
275028031 is a deficient number, since it is larger than the sum of its proper divisors (1).
275028031 is an equidigital number, since it uses as much as digits as its factorization.
275028031 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 3360, while the sum is 28.
The square root of 275028031 is about 16583.9690966909. The cubic root of 275028031 is about 650.3178177531.
The spelling of 275028031 in words is "two hundred seventy-five million, twenty-eight thousand, thirty-one".
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