Base | Representation |
---|---|
bin | 1000001110011… |
… | …00110001010010 |
3 | 11210211100222000 |
4 | 10013030301102 |
5 | 120130334203 |
6 | 10502454430 |
7 | 1465313016 |
oct | 407146122 |
9 | 153740860 |
10 | 68996178 |
11 | 35a45939 |
12 | 1b134416 |
13 | 113a9954 |
14 | 9240546 |
15 | 60cd4a3 |
hex | 41ccc52 |
68996178 has 32 divisors (see below), whose sum is σ = 153904320. Its totient is φ = 22911840.
The previous prime is 68996129. The next prime is 68996203. The reversal of 68996178 is 87169986.
It is a Harshad number since it is a multiple of its sum of digits (54).
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 15 ways as a sum of consecutive naturals, for example, 12901 + ... + 17447.
It is an arithmetic number, because the mean of its divisors is an integer number (4809510).
Almost surely, 268996178 is an apocalyptic number.
68996178 is an abundant number, since it is smaller than the sum of its proper divisors (84908142).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68996178 is a wasteful number, since it uses less digits than its factorization.
68996178 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4839 (or 4833 counting only the distinct ones).
The product of its digits is 1306368, while the sum is 54.
The square root of 68996178 is about 8306.3938023669. The cubic root of 68996178 is about 410.1490197942.
The spelling of 68996178 in words is "sixty-eight million, nine hundred ninety-six thousand, one hundred seventy-eight".
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