Base | Representation |
---|---|
bin | 11001100011100110011100 |
3 | 110121100212200 |
4 | 121203212130 |
5 | 3203340140 |
6 | 355331500 |
7 | 110641560 |
oct | 31434634 |
9 | 13540780 |
10 | 6699420 |
11 | 3866412 |
12 | 22b0b90 |
13 | 1507470 |
14 | c656a0 |
15 | 8c5030 |
hex | 66399c |
6699420 has 144 divisors (see below), whose sum is σ = 25072320. Its totient is φ = 1410048.
The previous prime is 6699401. The next prime is 6699421. The reversal of 6699420 is 249966.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a zygodrome in base 2.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (6699421) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16176 + ... + 16584.
Almost surely, 26699420 is an apocalyptic number.
6699420 is a gapful number since it is divisible by the number (60) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 6699420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12536160).
6699420 is an abundant number, since it is smaller than the sum of its proper divisors (18372900).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
6699420 is a wasteful number, since it uses less digits than its factorization.
6699420 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 444 (or 439 counting only the distinct ones).
The product of its (nonzero) digits is 23328, while the sum is 36.
The square root of 6699420 is about 2588.3237819098. The cubic root of 6699420 is about 188.5149230540.
The spelling of 6699420 in words is "six million, six hundred ninety-nine thousand, four hundred twenty".
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