Base | Representation |
---|---|
bin | 1001001001101… |
… | …0001101010001 |
3 | 2200012220222011 |
4 | 2102122031101 |
5 | 34311132434 |
6 | 3450342521 |
7 | 644141056 |
oct | 222321521 |
9 | 80186864 |
10 | 38380369 |
11 | 1a734815 |
12 | 10a2aa41 |
13 | 7c4a5a1 |
14 | 515102d |
15 | 3581e64 |
hex | 249a351 |
38380369 has 4 divisors (see below), whose sum is σ = 39703860. Its totient is φ = 37056880.
The previous prime is 38380367. The next prime is 38380393. The reversal of 38380369 is 96308383.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 32353344 + 6027025 = 5688^2 + 2455^2 .
It is a cyclic number.
It is not a de Polignac number, because 38380369 - 21 = 38380367 is a prime.
It is a super-2 number, since 2×383803692 = 2946105449152322, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (38380367) 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 3 ways as a sum of consecutive naturals, for example, 661702 + ... + 661759.
It is an arithmetic number, because the mean of its divisors is an integer number (9925965).
Almost surely, 238380369 is an apocalyptic number.
It is an amenable number.
38380369 is a deficient number, since it is larger than the sum of its proper divisors (1323491).
38380369 is a wasteful number, since it uses less digits than its factorization.
38380369 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1323490.
The product of its (nonzero) digits is 93312, while the sum is 40.
The square root of 38380369 is about 6195.1891819379. The cubic root of 38380369 is about 337.3155652562.
The spelling of 38380369 in words is "thirty-eight million, three hundred eighty thousand, three hundred sixty-nine".
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