Base | Representation |
---|---|
bin | 111111001010111111… |
… | …110101110111100000 |
3 | 20111002012120100112020 |
4 | 333022333311313200 |
5 | 2102404020232114 |
6 | 51054421301440 |
7 | 4620616356603 |
oct | 771277656740 |
9 | 214065510466 |
10 | 67830242784 |
11 | 26848449397 |
12 | 11190264880 |
13 | 651ca74645 |
14 | 33d67ac33a |
15 | 1b6edb9aa9 |
hex | fcaff5de0 |
67830242784 has 48 divisors (see below), whose sum is σ = 180493507152. Its totient is φ = 22300351488.
The previous prime is 67830242771. The next prime is 67830242797. The reversal of 67830242784 is 48724203876.
It is an interprime number because it is at equal distance from previous prime (67830242771) and next prime (67830242797).
It is a tau number, because it is divible by the number of its divisors (48).
It is a super-2 number, since 2×678302427842 (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 7 ways as a sum of consecutive naturals, for example, 4832479 + ... + 4846494.
It is an arithmetic number, because the mean of its divisors is an integer number (3760281399).
Almost surely, 267830242784 is an apocalyptic number.
It is an amenable number.
67830242784 is an abundant number, since it is smaller than the sum of its proper divisors (112663264368).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
67830242784 is a wasteful number, since it uses less digits than its factorization.
67830242784 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9679059 (or 9679051 counting only the distinct ones).
The product of its (nonzero) digits is 3612672, while the sum is 51.
The spelling of 67830242784 in words is "sixty-seven billion, eight hundred thirty million, two hundred forty-two thousand, seven hundred eighty-four".
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