Base | Representation |
---|---|
bin | 111110110001011011… |
… | …101110111001111000 |
3 | 20102222022112011200100 |
4 | 332301123232321320 |
5 | 2101014221043210 |
6 | 50544100435400 |
7 | 4604160664623 |
oct | 766133567170 |
9 | 212868464610 |
10 | 67401346680 |
11 | 266483373a8 |
12 | 110906a8b60 |
13 | 6481c56675 |
14 | 3395844dba |
15 | 1b473e95c0 |
hex | fb16eee78 |
67401346680 has 96 divisors (see below), whose sum is σ = 220320790560. Its totient is φ = 17869781760.
The previous prime is 67401346679. The next prime is 67401346741. The reversal of 67401346680 is 8664310476.
It is a happy number.
67401346680 is a `hidden beast` number, since 67 + 40 + 13 + 466 + 80 = 666.
It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 478836 + ... + 603395.
It is an arithmetic number, because the mean of its divisors is an integer number (2295008235).
Almost surely, 267401346680 is an apocalyptic number.
67401346680 is a gapful number since it is divisible by the number (60) formed by its first and last digit.
It is an amenable number.
67401346680 is an abundant number, since it is smaller than the sum of its proper divisors (152919443880).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
67401346680 is a wasteful number, since it uses less digits than its factorization.
67401346680 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1082421 (or 1082414 counting only the distinct ones).
The product of its (nonzero) digits is 580608, while the sum is 45.
The spelling of 67401346680 in words is "sixty-seven billion, four hundred one million, three hundred forty-six thousand, six hundred eighty".
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