Base | Representation |
---|---|
bin | 1001010001110… |
… | …0000000110111 |
3 | 2201012221022020 |
4 | 2110130000313 |
5 | 34430141210 |
6 | 3510004223 |
7 | 651514140 |
oct | 224340067 |
9 | 81187266 |
10 | 38912055 |
11 | 1aa68226 |
12 | 11046673 |
13 | 80a55b0 |
14 | 524cac7 |
15 | 3639770 |
hex | 251c037 |
38912055 has 64 divisors (see below), whose sum is σ = 79349760. Its totient is φ = 15837696.
The previous prime is 38912053. The next prime is 38912089. The reversal of 38912055 is 55021983.
It is not a de Polignac number, because 38912055 - 21 = 38912053 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (38912051) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 39094 + ... + 40076.
It is an arithmetic number, because the mean of its divisors is an integer number (1239840).
Almost surely, 238912055 is an apocalyptic number.
38912055 is a gapful number since it is divisible by the number (35) formed by its first and last digit.
38912055 is an abundant number, since it is smaller than the sum of its proper divisors (40437705).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
38912055 is a wasteful number, since it uses less digits than its factorization.
38912055 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1040.
The product of its (nonzero) digits is 10800, while the sum is 33.
The square root of 38912055 is about 6237.9527891769. The cubic root of 38912055 is about 338.8660463965.
The spelling of 38912055 in words is "thirty-eight million, nine hundred twelve thousand, fifty-five".
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