Base | Representation |
---|---|
bin | 1001010111100111101 |
3 | 120121010120 |
4 | 1022330331 |
5 | 34311010 |
6 | 10325153 |
7 | 2416026 |
oct | 1127475 |
9 | 517116 |
10 | 307005 |
11 | 19a726 |
12 | 1297b9 |
13 | a997a |
14 | 7dc4d |
15 | 60e70 |
hex | 4af3d |
307005 has 16 divisors (see below), whose sum is σ = 498624. Its totient is φ = 161280.
The previous prime is 306991. The next prime is 307009. The reversal of 307005 is 500703.
It is not a de Polignac number, because 307005 - 26 = 306941 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is an Ulam number.
It is a congruent number.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 307005.
It is not an unprimeable number, because it can be changed into a prime (307009) 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, 1350 + ... + 1560.
It is an arithmetic number, because the mean of its divisors is an integer number (31164).
2307005 is an apocalyptic number.
It is an amenable number.
307005 is a deficient number, since it is larger than the sum of its proper divisors (191619).
307005 is a wasteful number, since it uses less digits than its factorization.
307005 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 316.
The product of its (nonzero) digits is 105, while the sum is 15.
The square root of 307005 is about 554.0803190874. The cubic root of 307005 is about 67.4603333472.
Adding to 307005 its reverse (500703), we get a palindrome (807708).
The spelling of 307005 in words is "three hundred seven thousand, five".
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