Base | Representation |
---|---|
bin | 1001010010010… |
… | …1011100001101 |
3 | 2201021220021101 |
4 | 2110211130031 |
5 | 34432410134 |
6 | 3510503101 |
7 | 652034542 |
oct | 224453415 |
9 | 81256241 |
10 | 38950669 |
11 | 1aa9423a |
12 | 11064a91 |
13 | 80ba044 |
14 | 525cbc9 |
15 | 3645e14 |
hex | 252570d |
38950669 has 2 divisors, whose sum is σ = 38950670. Its totient is φ = 38950668.
The previous prime is 38950649. The next prime is 38950673. The reversal of 38950669 is 96605983.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 38912644 + 38025 = 6238^2 + 195^2 .
It is an emirp because it is prime and its reverse (96605983) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 38950669 - 211 = 38948621 is a prime.
It is a super-2 number, since 2×389506692 = 3034309231095122, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (38950649) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19475334 + 19475335.
It is an arithmetic number, because the mean of its divisors is an integer number (19475335).
Almost surely, 238950669 is an apocalyptic number.
It is an amenable number.
38950669 is a deficient number, since it is larger than the sum of its proper divisors (1).
38950669 is an equidigital number, since it uses as much as digits as its factorization.
38950669 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 349920, while the sum is 46.
The square root of 38950669 is about 6241.0471076575. The cubic root of 38950669 is about 338.9780994835.
The spelling of 38950669 in words is "thirty-eight million, nine hundred fifty thousand, six hundred sixty-nine".
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