Base | Representation |
---|---|
bin | 1000001001101… |
… | …10010001111000 |
3 | 11202200001102000 |
4 | 10010312101320 |
5 | 120001123033 |
6 | 10441341000 |
7 | 1460134632 |
oct | 404662170 |
9 | 152601360 |
10 | 68379768 |
11 | 35664806 |
12 | 1aa97760 |
13 | 11222202 |
14 | 911da52 |
15 | 600aa13 |
hex | 4136478 |
68379768 has 64 divisors (see below), whose sum is σ = 192132000. Its totient is φ = 22530816.
The previous prime is 68379749. The next prime is 68379781. The reversal of 68379768 is 86797386.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is a congruent number.
It is an unprimeable number.
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, 17446 + ... + 21002.
Almost surely, 268379768 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 68379768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96066000).
68379768 is an abundant number, since it is smaller than the sum of its proper divisors (123752232).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68379768 is a wasteful number, since it uses less digits than its factorization.
68379768 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3661 (or 3651 counting only the distinct ones).
The product of its digits is 3048192, while the sum is 54.
The square root of 68379768 is about 8269.2060078341. The cubic root of 68379768 is about 408.9239441476.
It can be divided in two parts, 683797 and 68, that added together give a triangular number (683865 = T1169).
The spelling of 68379768 in words is "sixty-eight million, three hundred seventy-nine thousand, seven hundred sixty-eight".
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