Base | Representation |
---|---|
bin | 1000010101001… |
… | …10111001000000 |
3 | 11212111202111201 |
4 | 10022212321000 |
5 | 120342431400 |
6 | 10533550544 |
7 | 1506023524 |
oct | 412467100 |
9 | 155452451 |
10 | 69889600 |
11 | 364a6100 |
12 | 1b4a5454 |
13 | 116304c1 |
14 | 93d3d84 |
15 | 620806a |
hex | 42a6e40 |
69889600 has 189 divisors, whose sum is σ = 199499601. Its totient is φ = 24076800.
The previous prime is 69889553. The next prime is 69889607. The reversal of 69889600 is 698896.
It is a happy number.
The square root of 69889600 is 8360.
It is a perfect power (a square), and thus also a powerful number.
It can be written as a sum of positive squares in only one way, i.e., 25160256 + 44729344 = 5016^2 + 6688^2 .
It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.
It is not an unprimeable number, because it can be changed into a prime (69889607) by changing a digit.
It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 3678391 + ... + 3678409.
Almost surely, 269889600 is an apocalyptic number.
69889600 is the 8360-th square number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 69889600
69889600 is an abundant number, since it is smaller than the sum of its proper divisors (129610001).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
69889600 is a wasteful number, since it uses less digits than its factorization.
69889600 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 82 (or 37 counting only the distinct ones).
The product of its (nonzero) digits is 186624, while the sum is 46.
The cubic root of 69889600 is about 411.9117541230.
Multiplying 69889600 by its product of nonzero digits (186624), we get a square (13043076710400 = 36115202).
Multiplying 69889600 by its reverse (698896), we get a square (48845561881600 = 69889602).
69889600 divided by its reverse (698896) gives a square (100 = 102).
The spelling of 69889600 in words is "sixty-nine million, eight hundred eighty-nine thousand, six hundred".
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