Base | Representation |
---|---|
bin | 1000000110111… |
… | …00100110000011 |
3 | 11201222101111111 |
4 | 10003130212003 |
5 | 114402344134 |
6 | 10425424151 |
7 | 1454044636 |
oct | 403344603 |
9 | 151871444 |
10 | 68012419 |
11 | 35433812 |
12 | 1a93b057 |
13 | 11123c47 |
14 | 9065c1d |
15 | 5e86c64 |
hex | 40dc983 |
68012419 has 8 divisors (see below), whose sum is σ = 73902080. Its totient is φ = 62353800.
The previous prime is 68012411. The next prime is 68012507. The reversal of 68012419 is 91421086.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 68012419 - 23 = 68012411 is a prime.
It is a super-2 number, since 2×680124192 = 9251378276463122, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (31).
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (68012411) 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 7 ways as a sum of consecutive naturals, for example, 57147 + ... + 58324.
It is an arithmetic number, because the mean of its divisors is an integer number (9237760).
Almost surely, 268012419 is an apocalyptic number.
68012419 is a deficient number, since it is larger than the sum of its proper divisors (5889661).
68012419 is a wasteful number, since it uses less digits than its factorization.
68012419 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 115521.
The product of its (nonzero) digits is 3456, while the sum is 31.
The square root of 68012419 is about 8246.9642293392. The cubic root of 68012419 is about 408.1903567550.
The spelling of 68012419 in words is "sixty-eight million, twelve thousand, four hundred nineteen".
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