Base | Representation |
---|---|
bin | 1001001001010… |
… | …1111101000001 |
3 | 2200012001001211 |
4 | 2102111331001 |
5 | 34310103240 |
6 | 3450130121 |
7 | 644036215 |
oct | 222257501 |
9 | 80161054 |
10 | 38362945 |
11 | 1a722715 |
12 | 10a20941 |
13 | 7c4268a |
14 | 5148945 |
15 | 357bbea |
hex | 2495f41 |
38362945 has 4 divisors (see below), whose sum is σ = 46035540. Its totient is φ = 30690352.
The previous prime is 38362943. The next prime is 38362967. The reversal of 38362945 is 54926383.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54926383 = 6521 ⋅8423.
It can be written as a sum of positive squares in 2 ways, for example, as 10810944 + 27552001 = 3288^2 + 5249^2 .
It is a cyclic number.
It is not a de Polignac number, because 38362945 - 21 = 38362943 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 38362898 and 38362907.
It is not an unprimeable number, because it can be changed into a prime (38362943) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3836290 + ... + 3836299.
It is an arithmetic number, because the mean of its divisors is an integer number (11508885).
Almost surely, 238362945 is an apocalyptic number.
It is an amenable number.
38362945 is a deficient number, since it is larger than the sum of its proper divisors (7672595).
38362945 is an equidigital number, since it uses as much as digits as its factorization.
38362945 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7672594.
The product of its digits is 155520, while the sum is 40.
The square root of 38362945 is about 6193.7827698427. The cubic root of 38362945 is about 337.2645124550.
The spelling of 38362945 in words is "thirty-eight million, three hundred sixty-two thousand, nine hundred forty-five".
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