Base | Representation |
---|---|
bin | 11110000000111111110001 |
3 | 112210202102021 |
4 | 132000333301 |
5 | 4003242101 |
6 | 440351441 |
7 | 123610642 |
oct | 36007761 |
9 | 15722367 |
10 | 7868401 |
11 | 4494712 |
12 | 2775581 |
13 | 1826578 |
14 | 108b6c9 |
15 | a565a1 |
hex | 780ff1 |
7868401 has 8 divisors (see below), whose sum is σ = 8013600. Its totient is φ = 7724640.
The previous prime is 7868381. The next prime is 7868423. The reversal of 7868401 is 1048687.
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 a de Polignac number, because none of the positive numbers 2k-7868401 is a prime.
It is an Ulam number.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (7868431) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18570 + ... + 18988.
It is an arithmetic number, because the mean of its divisors is an integer number (1001700).
Almost surely, 27868401 is an apocalyptic number.
It is an amenable number.
7868401 is a deficient number, since it is larger than the sum of its proper divisors (145199).
7868401 is a wasteful number, since it uses less digits than its factorization.
7868401 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 719.
The product of its (nonzero) digits is 10752, while the sum is 34.
The square root of 7868401 is about 2805.0670223722. The cubic root of 7868401 is about 198.8972728047.
The spelling of 7868401 in words is "seven million, eight hundred sixty-eight thousand, four hundred one".
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