Base | Representation |
---|---|
bin | 1000001010100… |
… | …00110000110011 |
3 | 11202212120012121 |
4 | 10011100300303 |
5 | 120013110433 |
6 | 10443535111 |
7 | 1461066115 |
oct | 405206063 |
9 | 152776177 |
10 | 68488243 |
11 | 3572925a |
12 | 1ab2a497 |
13 | 1125c6b5 |
14 | 914b3b5 |
15 | 602cc2d |
hex | 4150c33 |
68488243 has 8 divisors (see below), whose sum is σ = 69961968. Its totient is φ = 67021344.
The previous prime is 68488213. The next prime is 68488261. The reversal of 68488243 is 34288486.
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 68488243 - 217 = 68357171 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 68488243.
It is not an unprimeable number, because it can be changed into a prime (68488213) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22021 + ... + 24937.
It is an arithmetic number, because the mean of its divisors is an integer number (8745246).
Almost surely, 268488243 is an apocalyptic number.
68488243 is a deficient number, since it is larger than the sum of its proper divisors (1473725).
68488243 is a wasteful number, since it uses less digits than its factorization.
68488243 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3413.
The product of its digits is 294912, while the sum is 43.
The square root of 68488243 is about 8275.7623817990. The cubic root of 68488243 is about 409.1400635781.
The spelling of 68488243 in words is "sixty-eight million, four hundred eighty-eight thousand, two hundred forty-three".
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