Base | Representation |
---|---|
bin | 1001011000101001000 |
3 | 120121211221 |
4 | 1023011020 |
5 | 34320103 |
6 | 10331424 |
7 | 2420404 |
oct | 1130510 |
9 | 517757 |
10 | 307528 |
11 | 1a0061 |
12 | 129b74 |
13 | a9c90 |
14 | 80104 |
15 | 611bd |
hex | 4b148 |
307528 has 16 divisors (see below), whose sum is σ = 621180. Its totient is φ = 141888.
The previous prime is 307523. The next prime is 307529. The reversal of 307528 is 825703.
It can be written as a sum of positive squares in 2 ways, for example, as 268324 + 39204 = 518^2 + 198^2 .
It is an Ulam number.
It is not an unprimeable number, because it can be changed into a prime (307523) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1375 + ... + 1582.
2307528 is an apocalyptic number.
It is an amenable number.
307528 is an abundant number, since it is smaller than the sum of its proper divisors (313652).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
307528 is a wasteful number, since it uses less digits than its factorization.
307528 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2976 (or 2972 counting only the distinct ones).
The product of its (nonzero) digits is 1680, while the sum is 25.
The square root of 307528 is about 554.5520714955. The cubic root of 307528 is about 67.4986190847.
It can be divided in two parts, 30752 and 8, that multiplied together give a square (246016 = 4962).
The spelling of 307528 in words is "three hundred seven thousand, five hundred twenty-eight".
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