Base | Representation |
---|---|
bin | 1000001000010… |
… | …10110010011100 |
3 | 11202100000001020 |
4 | 10010022302130 |
5 | 114424423003 |
6 | 10433444140 |
7 | 1455463365 |
oct | 404126234 |
9 | 152300036 |
10 | 68201628 |
11 | 35552990 |
12 | 1aa10650 |
13 | 1118c0c1 |
14 | 90b4b6c |
15 | 5ec2d53 |
hex | 410ac9c |
68201628 has 24 divisors (see below), whose sum is σ = 173604480. Its totient is φ = 20667120.
The previous prime is 68201593. The next prime is 68201629. The reversal of 68201628 is 82610286.
It is a Harshad number since it is a multiple of its sum of digits (33).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68201629) 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, 258208 + ... + 258471.
It is an arithmetic number, because the mean of its divisors is an integer number (7233520).
Almost surely, 268201628 is an apocalyptic number.
It is an amenable number.
68201628 is an abundant number, since it is smaller than the sum of its proper divisors (105402852).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68201628 is a wasteful number, since it uses less digits than its factorization.
68201628 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 516697 (or 516695 counting only the distinct ones).
The product of its (nonzero) digits is 9216, while the sum is 33.
The square root of 68201628 is about 8258.4276953909. The cubic root of 68201628 is about 408.5685317041.
It can be divided in two parts, 6820 and 1628, that added together give a palindrome (8448).
The spelling of 68201628 in words is "sixty-eight million, two hundred one thousand, six hundred twenty-eight".
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