Base | Representation |
---|---|
bin | 1001000110010… |
… | …0001100011000 |
3 | 2122210200111001 |
4 | 2101210030120 |
5 | 34232043003 |
6 | 3441514344 |
7 | 642230050 |
oct | 221441430 |
9 | 78720431 |
10 | 38159128 |
11 | 1a5a3577 |
12 | 109429b4 |
13 | 7ba0987 |
14 | 50d4560 |
15 | 353b61d |
hex | 2464318 |
38159128 has 32 divisors (see below), whose sum is σ = 84592800. Its totient is φ = 15789312.
The previous prime is 38159123. The next prime is 38159137. The reversal of 38159128 is 82195183.
It is a super-2 number, since 2×381591282 = 2912238099440768, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (38159123) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10125 + ... + 13372.
It is an arithmetic number, because the mean of its divisors is an integer number (2643525).
Almost surely, 238159128 is an apocalyptic number.
It is an amenable number.
38159128 is an abundant number, since it is smaller than the sum of its proper divisors (46433672).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
38159128 is a wasteful number, since it uses less digits than its factorization.
38159128 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 23539 (or 23535 counting only the distinct ones).
The product of its digits is 17280, while the sum is 37.
The square root of 38159128 is about 6177.3075040830. The cubic root of 38159128 is about 336.6661717254. Note that the first 3 decimals are identical.
The spelling of 38159128 in words is "thirty-eight million, one hundred fifty-nine thousand, one hundred twenty-eight".
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