Base | Representation |
---|---|
bin | 1110010100100010… |
… | …01110100001100100 |
3 | 201211211020021222200 |
4 | 13022101032201210 |
5 | 111221222341433 |
6 | 3310530454500 |
7 | 361346003055 |
oct | 71221164144 |
9 | 21754207880 |
10 | 7688480868 |
11 | 3295a46522 |
12 | 15a6a34430 |
13 | 956b41183 |
14 | 52d17672c |
15 | 2eeeb3613 |
hex | 1ca44e864 |
7688480868 has 36 divisors (see below), whose sum is σ = 19574602320. Its totient is φ = 2544387696.
The previous prime is 7688480867. The next prime is 7688480923. The reversal of 7688480868 is 8680848867.
7688480868 is a `hidden beast` number, since 76 + 8 + 8 + 480 + 86 + 8 = 666.
It is a tau number, because it is divible by the number of its divisors (36).
It is a super-2 number, since 2×76884808682 (a number of 21 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (7688480867) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 763230 + ... + 773237.
Almost surely, 27688480868 is an apocalyptic number.
It is an amenable number.
7688480868 is an abundant number, since it is smaller than the sum of its proper divisors (11886121452).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
7688480868 is a wasteful number, since it uses less digits than its factorization.
7688480868 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1536616 (or 1536611 counting only the distinct ones).
The product of its (nonzero) digits is 33030144, while the sum is 63.
The square root of 7688480868 is about 87683.9829615421. The cubic root of 7688480868 is about 1973.6956290784.
The spelling of 7688480868 in words is "seven billion, six hundred eighty-eight million, four hundred eighty thousand, eight hundred sixty-eight".
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