Base | Representation |
---|---|
bin | 1001001111110… |
… | …1001011111100 |
3 | 2200222112002200 |
4 | 2103331023330 |
5 | 34412121123 |
6 | 3503151500 |
7 | 650450046 |
oct | 223751374 |
9 | 80875080 |
10 | 38785788 |
11 | 1a991378 |
12 | 10ba5590 |
13 | 805cc92 |
14 | 5218a96 |
15 | 3612143 |
hex | 24fd2fc |
38785788 has 36 divisors (see below), whose sum is σ = 98967960. Its totient is φ = 12806496.
The previous prime is 38785787. The next prime is 38785793. The reversal of 38785788 is 88758783.
It is a tau number, because it is divible by the number of its divisors (36).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (38785787) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1183 + ... + 8886.
It is an arithmetic number, because the mean of its divisors is an integer number (2749110).
Almost surely, 238785788 is an apocalyptic number.
It is an amenable number.
38785788 is an abundant number, since it is smaller than the sum of its proper divisors (60182172).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
38785788 is a wasteful number, since it uses less digits than its factorization.
38785788 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10186 (or 10181 counting only the distinct ones).
The product of its digits is 3010560, while the sum is 54.
The square root of 38785788 is about 6227.8236969266. The cubic root of 38785788 is about 338.4991167166.
The spelling of 38785788 in words is "thirty-eight million, seven hundred eighty-five thousand, seven hundred eighty-eight".
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