Base | Representation |
---|---|
bin | 110100010011… |
… | …1010100011111 |
3 | 1220121021200212 |
4 | 1220213110133 |
5 | 24010032111 |
6 | 2415443035 |
7 | 452046305 |
oct | 150472437 |
9 | 56537625 |
10 | 27424031 |
11 | 14531098 |
12 | 922647b |
13 | 58b264b |
14 | 38dc275 |
15 | 261a98b |
hex | 1a2751f |
27424031 has 2 divisors, whose sum is σ = 27424032. Its totient is φ = 27424030.
The previous prime is 27424013. The next prime is 27424037. The reversal of 27424031 is 13042472.
Together with previous prime (27424013) it forms an Ormiston pair, because they use the same digits, order apart.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 27424031 - 210 = 27423007 is a prime.
It is a super-2 number, since 2×274240312 = 1504154952577922, which contains 22 as substring.
It is a Sophie Germain prime.
It is a junction number, because it is equal to n+sod(n) for n = 27423988 and 27424006.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (27424037) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13712015 + 13712016.
It is an arithmetic number, because the mean of its divisors is an integer number (13712016).
Almost surely, 227424031 is an apocalyptic number.
27424031 is a deficient number, since it is larger than the sum of its proper divisors (1).
27424031 is an equidigital number, since it uses as much as digits as its factorization.
27424031 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1344, while the sum is 23.
The square root of 27424031 is about 5236.7958715230. The cubic root of 27424031 is about 301.5623347615.
The spelling of 27424031 in words is "twenty-seven million, four hundred twenty-four thousand, thirty-one".
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