Base | Representation |
---|---|
bin | 1000000010010… |
… | …00010111000000 |
3 | 11200211112121200 |
4 | 10001020113000 |
5 | 114223431443 |
6 | 10404421200 |
7 | 1445635521 |
oct | 401102700 |
9 | 150745550 |
10 | 67405248 |
11 | 35059619 |
12 | 1a6a7800 |
13 | 10c70781 |
14 | 8d48848 |
15 | 5db6dd3 |
hex | 40485c0 |
67405248 has 42 divisors (see below), whose sum is σ = 193206624. Its totient is φ = 22468224.
The previous prime is 67405243. The next prime is 67405267. The reversal of 67405248 is 84250476.
67405248 is a `hidden beast` number, since 6 + 7 + 405 + 248 = 666.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (67405243) 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 5 ways as a sum of consecutive naturals, for example, 57936 + ... + 59087.
Almost surely, 267405248 is an apocalyptic number.
It is an amenable number.
67405248 is an abundant number, since it is smaller than the sum of its proper divisors (125801376).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
67405248 is a wasteful number, since it uses less digits than its factorization.
67405248 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 117041 (or 117028 counting only the distinct ones).
The product of its (nonzero) digits is 53760, while the sum is 36.
The square root of 67405248 is about 8210.0699144404. The cubic root of 67405248 is about 406.9720373507.
The spelling of 67405248 in words is "sixty-seven million, four hundred five thousand, two hundred forty-eight".
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