Base | Representation |
---|---|
bin | 1100111011111110… |
… | …11000000111110000 |
3 | 122221001101020121120 |
4 | 12131333120013300 |
5 | 103211033312310 |
6 | 3105112222240 |
7 | 334055442402 |
oct | 63577300760 |
9 | 18831336546 |
10 | 6945604080 |
11 | 2a44681168 |
12 | 141a09a980 |
13 | 868c6b9cc |
14 | 49c63ab72 |
15 | 2a9b71b70 |
hex | 19dfd81f0 |
6945604080 has 80 divisors (see below), whose sum is σ = 21688638624. Its totient is φ = 1838632960.
The previous prime is 6945604069. The next prime is 6945604097. The reversal of 6945604080 is 804065496.
It is a tau number, because it is divible by the number of its divisors (80).
It is a super-2 number, since 2×69456040802 = 96482832072225292800, which contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72741 + ... + 138500.
Almost surely, 26945604080 is an apocalyptic number.
6945604080 is a gapful number since it is divisible by the number (60) formed by its first and last digit.
It is an amenable number.
6945604080 is an abundant number, since it is smaller than the sum of its proper divisors (14743034544).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
6945604080 is a wasteful number, since it uses less digits than its factorization.
6945604080 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 211394 (or 211388 counting only the distinct ones).
The product of its (nonzero) digits is 207360, while the sum is 42.
The square root of 6945604080 is about 83340.2908562239. The cubic root of 6945604080 is about 1907.9632611186.
The spelling of 6945604080 in words is "six billion, nine hundred forty-five million, six hundred four thousand, eighty".
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