Base | Representation |
---|---|
bin | 101001000000110… |
… | …001001011111101 |
3 | 1202221201102221000 |
4 | 221000301023331 |
5 | 2402121123300 |
6 | 152135400513 |
7 | 23023322121 |
oct | 5100611375 |
9 | 1687642830 |
10 | 688067325 |
11 | 32343a190 |
12 | 172523139 |
13 | ac721c3a |
14 | 6754d581 |
15 | 40616c00 |
hex | 290312fd |
688067325 has 48 divisors (see below), whose sum is σ = 1378929600. Its totient is φ = 333604800.
The previous prime is 688067321. The next prime is 688067339. The reversal of 688067325 is 523760886.
It is not a de Polignac number, because 688067325 - 22 = 688067321 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (688067321) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 38910 + ... + 53759.
It is an arithmetic number, because the mean of its divisors is an integer number (28727700).
Almost surely, 2688067325 is an apocalyptic number.
It is an amenable number.
688067325 is an abundant number, since it is smaller than the sum of its proper divisors (690862275).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
688067325 is a wasteful number, since it uses less digits than its factorization.
688067325 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 92699 (or 92688 counting only the distinct ones).
The product of its (nonzero) digits is 483840, while the sum is 45.
The square root of 688067325 is about 26231.0374365941. The cubic root of 688067325 is about 882.8297873713.
The spelling of 688067325 in words is "six hundred eighty-eight million, sixty-seven thousand, three hundred twenty-five".
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