Base | Representation |
---|---|
bin | 1001001111010… |
… | …0111100011111 |
3 | 2200220210210102 |
4 | 2103310330133 |
5 | 34410031111 |
6 | 3502331315 |
7 | 650246453 |
oct | 223647437 |
9 | 80823712 |
10 | 38752031 |
11 | 1a968a7a |
12 | 10b89b3b |
13 | 804a7c6 |
14 | 520a663 |
15 | 360713b |
hex | 24f4f1f |
38752031 has 2 divisors, whose sum is σ = 38752032. Its totient is φ = 38752030.
The previous prime is 38751997. The next prime is 38752037. The reversal of 38752031 is 13025783.
It is a strong prime.
It is an emirp because it is prime and its reverse (13025783) is a distict prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-38752031 is a prime.
It is a super-2 number, since 2×387520312 = 3003439813249922, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 38751985 and 38752003.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (38752037) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19376015 + 19376016.
It is an arithmetic number, because the mean of its divisors is an integer number (19376016).
Almost surely, 238752031 is an apocalyptic number.
38752031 is a deficient number, since it is larger than the sum of its proper divisors (1).
38752031 is an equidigital number, since it uses as much as digits as its factorization.
38752031 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 5040, while the sum is 29.
The square root of 38752031 is about 6225.1129307025. The cubic root of 38752031 is about 338.4008845897.
The spelling of 38752031 in words is "thirty-eight million, seven hundred fifty-two thousand, thirty-one".
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