Base | Representation |
---|---|
bin | 1001000101011… |
… | …1101100001111 |
3 | 2122201002020102 |
4 | 2101113230033 |
5 | 34223423134 |
6 | 3440441315 |
7 | 641624543 |
oct | 221275417 |
9 | 78632212 |
10 | 38107919 |
11 | 1a569053 |
12 | 1091923b |
13 | 7b83585 |
14 | 50bda23 |
15 | 352b37e |
hex | 2457b0f |
38107919 has 2 divisors, whose sum is σ = 38107920. Its totient is φ = 38107918.
The previous prime is 38107913. The next prime is 38107957. The reversal of 38107919 is 91970183.
It is an a-pointer prime, because the next prime (38107957) can be obtained adding 38107919 to its sum of digits (38).
It is a weak prime.
It is an emirp because it is prime and its reverse (91970183) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 38107919 - 212 = 38103823 is a prime.
It is a super-2 number, since 2×381079192 = 2904426981021122, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (38107913) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19053959 + 19053960.
It is an arithmetic number, because the mean of its divisors is an integer number (19053960).
Almost surely, 238107919 is an apocalyptic number.
38107919 is a deficient number, since it is larger than the sum of its proper divisors (1).
38107919 is an equidigital number, since it uses as much as digits as its factorization.
38107919 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 13608, while the sum is 38.
The square root of 38107919 is about 6173.1611837048. The cubic root of 38107919 is about 336.5155039233.
The spelling of 38107919 in words is "thirty-eight million, one hundred seven thousand, nine hundred nineteen".
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