Base | Representation |
---|---|
bin | 1001010010101… |
… | …0010010110101 |
3 | 2201022220112200 |
4 | 2110222102311 |
5 | 34434024144 |
6 | 3511135113 |
7 | 652146522 |
oct | 224522265 |
9 | 81286480 |
10 | 38970549 |
11 | 1aaa8172 |
12 | 11074499 |
13 | 80c60c7 |
14 | 5266149 |
15 | 364bc69 |
hex | 252a4b5 |
38970549 has 12 divisors (see below), whose sum is σ = 56359212. Its totient is φ = 25948800.
The previous prime is 38970523. The next prime is 38970553. The reversal of 38970549 is 94507983.
38970549 is a `hidden beast` number, since 38 + 9 + 70 + 549 = 666.
It can be written as a sum of positive squares in 2 ways, for example, as 32695524 + 6275025 = 5718^2 + 2505^2 .
It is not a de Polignac number, because 38970549 - 25 = 38970517 is a prime.
It is a super-2 number, since 2×389705492 = 3037407378722802, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (38970559) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7069 + ... + 11309.
It is an arithmetic number, because the mean of its divisors is an integer number (4696601).
Almost surely, 238970549 is an apocalyptic number.
It is an amenable number.
38970549 is a deficient number, since it is larger than the sum of its proper divisors (17388663).
38970549 is a wasteful number, since it uses less digits than its factorization.
38970549 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5268 (or 5265 counting only the distinct ones).
The product of its (nonzero) digits is 272160, while the sum is 45.
The square root of 38970549 is about 6242.6395859444. The cubic root of 38970549 is about 339.0357599262.
The spelling of 38970549 in words is "thirty-eight million, nine hundred seventy thousand, five hundred forty-nine".
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