Base | Representation |
---|---|
bin | 100110101110… |
… | …0001000100101 |
3 | 1102012100210220 |
4 | 1031130020211 |
5 | 20144102300 |
6 | 2003034553 |
7 | 334356423 |
oct | 115341045 |
9 | 42170726 |
10 | 20300325 |
11 | 10505a31 |
12 | 696ba59 |
13 | 428a036 |
14 | 29a6113 |
15 | 1baeda0 |
hex | 135c225 |
20300325 has 24 divisors (see below), whose sum is σ = 34203168. Its totient is φ = 10620480.
The previous prime is 20300323. The next prime is 20300327. The reversal of 20300325 is 52300302.
It is an interprime number because it is at equal distance from previous prime (20300323) and next prime (20300327).
It is not a de Polignac number, because 20300325 - 21 = 20300323 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20300323) 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 23 ways as a sum of consecutive naturals, for example, 1422 + ... + 6528.
It is an arithmetic number, because the mean of its divisors is an integer number (1425132).
Almost surely, 220300325 is an apocalyptic number.
20300325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
It is an amenable number.
20300325 is a deficient number, since it is larger than the sum of its proper divisors (13902843).
20300325 is a wasteful number, since it uses less digits than its factorization.
20300325 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5173 (or 5168 counting only the distinct ones).
The product of its (nonzero) digits is 180, while the sum is 15.
The square root of 20300325 is about 4505.5881968951. The cubic root of 20300325 is about 272.7936961948.
Adding to 20300325 its reverse (52300302), we get a palindrome (72600627).
The spelling of 20300325 in words is "twenty million, three hundred thousand, three hundred twenty-five".
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