Base | Representation |
---|---|
bin | 1000000111011… |
… | …00101010100100 |
3 | 11202002201210110 |
4 | 10003230222210 |
5 | 114412000434 |
6 | 10431053020 |
7 | 1454440563 |
oct | 403545244 |
9 | 152081713 |
10 | 68078244 |
11 | 35479213 |
12 | 1a971170 |
13 | 11147bb0 |
14 | 9081bda |
15 | 5e9b4e9 |
hex | 40ecaa4 |
68078244 has 24 divisors (see below), whose sum is σ = 171068800. Its totient is φ = 20947104.
The previous prime is 68078243. The next prime is 68078281. The reversal of 68078244 is 44287086.
It is a super-3 number, since 3×680782443 (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a Harshad number since it is a multiple of its sum of digits (39).
It is not an unprimeable number, because it can be changed into a prime (68078243) 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, 218044 + ... + 218355.
Almost surely, 268078244 is an apocalyptic number.
It is an amenable number.
68078244 is an abundant number, since it is smaller than the sum of its proper divisors (102990556).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68078244 is a wasteful number, since it uses less digits than its factorization.
68078244 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 436419 (or 436417 counting only the distinct ones).
The product of its (nonzero) digits is 86016, while the sum is 39.
The square root of 68078244 is about 8250.9541266450. The cubic root of 68078244 is about 408.3220016662.
It can be divided in two parts, 6807 and 8244, that added together give a palindrome (15051).
The spelling of 68078244 in words is "sixty-eight million, seventy-eight thousand, two hundred forty-four".
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