Base | Representation |
---|---|
bin | 1001010000111… |
… | …1000010000000 |
3 | 2201010020100210 |
4 | 2110033002000 |
5 | 34421441010 |
6 | 3504514120 |
7 | 651203124 |
oct | 224170200 |
9 | 81106323 |
10 | 38858880 |
11 | 1aa31285 |
12 | 1101b940 |
13 | 8087328 |
14 | 5237584 |
15 | 3628b20 |
hex | 250f080 |
38858880 has 128 divisors (see below), whose sum is σ = 127442880. Its totient is φ = 10063872.
The previous prime is 38858863. The next prime is 38858887. The reversal of 38858880 is 8885883.
It is a tau number, because it is divible by the number of its divisors (128).
It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.
It is a Harshad number since it is a multiple of its sum of digits (48).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (38858887) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70767 + ... + 71313.
Almost surely, 238858880 is an apocalyptic number.
38858880 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 38858880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63721440).
38858880 is an abundant number, since it is smaller than the sum of its proper divisors (88584000).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
38858880 is a wasteful number, since it uses less digits than its factorization.
38858880 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 606 (or 594 counting only the distinct ones).
The product of its (nonzero) digits is 491520, while the sum is 48.
The square root of 38858880 is about 6233.6891164061. The cubic root of 38858880 is about 338.7116176789.
The spelling of 38858880 in words is "thirty-eight million, eight hundred fifty-eight thousand, eight hundred eighty".
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