Base | Representation |
---|---|
bin | 111111000110000110… |
… | …100011001111001000 |
3 | 20110212111000211221021 |
4 | 333012012203033020 |
5 | 2102222004143100 |
6 | 51042325122224 |
7 | 4615601323300 |
oct | 770606431710 |
9 | 213774024837 |
10 | 67748115400 |
11 | 26806054919 |
12 | 11168859374 |
13 | 6508a4ab64 |
14 | 33c9910600 |
15 | 1b67a95a1a |
hex | fc61a33c8 |
67748115400 has 72 divisors (see below), whose sum is σ = 183231026370. Its totient is φ = 23227921920.
The previous prime is 67748115397. The next prime is 67748115401. The reversal of 67748115400 is 451184776.
67748115400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 3 ways, for example, as 57533779044 + 10214336356 = 239862^2 + 101066^2 .
It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.
It is not an unprimeable number, because it can be changed into a prime (67748115401) by changing a digit.
It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3446737 + ... + 3466336.
Almost surely, 267748115400 is an apocalyptic number.
It is an amenable number.
67748115400 is an abundant number, since it is smaller than the sum of its proper divisors (115482910970).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
67748115400 is a wasteful number, since it uses less digits than its factorization.
67748115400 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6913103 (or 6913087 counting only the distinct ones).
The product of its (nonzero) digits is 188160, while the sum is 43.
The spelling of 67748115400 in words is "sixty-seven billion, seven hundred forty-eight million, one hundred fifteen thousand, four hundred".
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