Base | Representation |
---|---|
bin | 111111000011110101… |
… | …110111011101110100 |
3 | 20110202211122220110210 |
4 | 333003311313131310 |
5 | 2102132301444010 |
6 | 51034452145420 |
7 | 4614631045053 |
oct | 770365673564 |
9 | 213684586423 |
10 | 67710187380 |
11 | 267966a9a50 |
12 | 11158008270 |
13 | 6500c2b444 |
14 | 33c487a39a |
15 | 1b645a2b20 |
hex | fc3d77774 |
67710187380 has 192 divisors, whose sum is σ = 209251381248. Its totient is φ = 16222602240.
The previous prime is 67710187357. The next prime is 67710187399. The reversal of 67710187380 is 8378101776.
It is a super-2 number, since 2×677101873802 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 63696729 + ... + 63697791.
It is an arithmetic number, because the mean of its divisors is an integer number (1089850944).
Almost surely, 267710187380 is an apocalyptic number.
67710187380 is a gapful number since it is divisible by the number (60) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 67710187380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104625690624).
67710187380 is an abundant number, since it is smaller than the sum of its proper divisors (141541193868).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
67710187380 is a wasteful number, since it uses less digits than its factorization.
67710187380 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2126 (or 2124 counting only the distinct ones).
The product of its (nonzero) digits is 395136, while the sum is 48.
The spelling of 67710187380 in words is "sixty-seven billion, seven hundred ten million, one hundred eighty-seven thousand, three hundred eighty".
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