Base | Representation |
---|---|
bin | 1000001000010… |
… | …01101101011010 |
3 | 11202022202222121 |
4 | 10010021231122 |
5 | 114424302320 |
6 | 10433411454 |
7 | 1455444454 |
oct | 404115532 |
9 | 152282877 |
10 | 68197210 |
11 | 3554a634 |
12 | 1aa09b8a |
13 | 1118a0a3 |
14 | 90b32d4 |
15 | 5ec18aa |
hex | 4109b5a |
68197210 has 32 divisors (see below), whose sum is σ = 127526400. Its totient is φ = 26230080.
The previous prime is 68197201. The next prime is 68197211. The reversal of 68197210 is 1279186.
It is a happy number.
It is not an unprimeable number, because it can be changed into a prime (68197211) by changing a digit.
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, 54876 + ... + 56104.
It is an arithmetic number, because the mean of its divisors is an integer number (3985200).
Almost surely, 268197210 is an apocalyptic number.
68197210 is a deficient number, since it is larger than the sum of its proper divisors (59329190).
68197210 is a wasteful number, since it uses less digits than its factorization.
68197210 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1446.
The product of its (nonzero) digits is 6048, while the sum is 34.
The square root of 68197210 is about 8258.1602067289. The cubic root of 68197210 is about 408.5597093598.
The spelling of 68197210 in words is "sixty-eight million, one hundred ninety-seven thousand, two hundred ten".
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