Base | Representation |
---|---|
bin | 1001010010000… |
… | …0011011011000 |
3 | 2201020212002220 |
4 | 2110200123120 |
5 | 34431231021 |
6 | 3510224040 |
7 | 651620640 |
oct | 224403330 |
9 | 81225086 |
10 | 38930136 |
11 | 1aa7a873 |
12 | 11055020 |
13 | 80b08ab |
14 | 5255520 |
15 | 363ecc6 |
hex | 25206d8 |
38930136 has 128 divisors (see below), whose sum is σ = 120890880. Its totient is φ = 10192896.
The previous prime is 38930083. The next prime is 38930137. The reversal of 38930136 is 63103983.
It is a junction number, because it is equal to n+sod(n) for n = 38930097 and 38930106.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (38930137) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 122650 + ... + 122966.
It is an arithmetic number, because the mean of its divisors is an integer number (944460).
Almost surely, 238930136 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 38930136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60445440).
38930136 is an abundant number, since it is smaller than the sum of its proper divisors (81960744).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
38930136 is a wasteful number, since it uses less digits than its factorization.
38930136 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 393 (or 389 counting only the distinct ones).
The product of its (nonzero) digits is 11664, while the sum is 33.
The square root of 38930136 is about 6239.4018944126. The cubic root of 38930136 is about 338.9185244630.
The spelling of 38930136 in words is "thirty-eight million, nine hundred thirty thousand, one hundred thirty-six".
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