Base | Representation |
---|---|
bin | 1001010001001… |
… | …1101101001001 |
3 | 2201011012121212 |
4 | 2110103231021 |
5 | 34423044100 |
6 | 3505142505 |
7 | 651313004 |
oct | 224235511 |
9 | 81135555 |
10 | 38878025 |
11 | 1aa446aa |
12 | 1102aa35 |
13 | 8092c64 |
14 | 524053b |
15 | 362e635 |
hex | 2513b49 |
38878025 has 12 divisors (see below), whose sum is σ = 48313872. Its totient is φ = 31034640.
The previous prime is 38878019. The next prime is 38878039. The reversal of 38878025 is 52087883.
It is not a de Polignac number, because 38878025 - 26 = 38877961 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12254 + ... + 15096.
It is an arithmetic number, because the mean of its divisors is an integer number (4026156).
Almost surely, 238878025 is an apocalyptic number.
It is an amenable number.
38878025 is a deficient number, since it is larger than the sum of its proper divisors (9435847).
38878025 is a wasteful number, since it uses less digits than its factorization.
38878025 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3400 (or 3395 counting only the distinct ones).
The product of its (nonzero) digits is 107520, while the sum is 41.
The square root of 38878025 is about 6235.2245348504. The cubic root of 38878025 is about 338.7672340465.
The spelling of 38878025 in words is "thirty-eight million, eight hundred seventy-eight thousand, twenty-five".
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