Base | Representation |
---|---|
bin | 1000001100111… |
… | …01000011100100 |
3 | 11210110102212120 |
4 | 10012131003210 |
5 | 120103110430 |
6 | 10454345540 |
7 | 1463540151 |
oct | 406350344 |
9 | 153412776 |
10 | 68800740 |
11 | 35922018 |
12 | 1b05b2b0 |
13 | 1133b9c8 |
14 | 91cd228 |
15 | 6090610 |
hex | 419d0e4 |
68800740 has 24 divisors (see below), whose sum is σ = 192642240. Its totient is φ = 18346848.
The previous prime is 68800727. The next prime is 68800757. The reversal of 68800740 is 4700886.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 573280 + ... + 573399.
It is an arithmetic number, because the mean of its divisors is an integer number (8026760).
Almost surely, 268800740 is an apocalyptic number.
68800740 is a gapful number since it is divisible by the number (60) formed by its first and last digit.
It is an amenable number.
68800740 is an abundant number, since it is smaller than the sum of its proper divisors (123841500).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68800740 is a wasteful number, since it uses less digits than its factorization.
68800740 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1146691 (or 1146689 counting only the distinct ones).
The product of its (nonzero) digits is 10752, while the sum is 33.
The square root of 68800740 is about 8294.6211486722. The cubic root of 68800740 is about 409.7613919989.
The spelling of 68800740 in words is "sixty-eight million, eight hundred thousand, seven hundred forty".
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