Base | Representation |
---|---|
bin | 1000010011100… |
… | …00010101010010 |
3 | 11212002101222001 |
4 | 10021300111102 |
5 | 120313304010 |
6 | 10525104214 |
7 | 1504103152 |
oct | 411602522 |
9 | 155071861 |
10 | 69666130 |
11 | 36363216 |
12 | 1b3b806a |
13 | 11582881 |
14 | 9376762 |
15 | 61b1c3a |
hex | 4270552 |
69666130 has 8 divisors (see below), whose sum is σ = 125399052. Its totient is φ = 27866448.
The previous prime is 69666109. The next prime is 69666137. The reversal of 69666130 is 3166696.
It can be written as a sum of positive squares in 2 ways, for example, as 64016001 + 5650129 = 8001^2 + 2377^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a self number, because there is not a number n which added to its sum of digits gives 69666130.
It is not an unprimeable number, because it can be changed into a prime (69666137) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3483297 + ... + 3483316.
Almost surely, 269666130 is an apocalyptic number.
69666130 is a deficient number, since it is larger than the sum of its proper divisors (55732922).
69666130 is a wasteful number, since it uses less digits than its factorization.
69666130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6966620.
The product of its (nonzero) digits is 34992, while the sum is 37.
The square root of 69666130 is about 8346.6238683674. The cubic root of 69666130 is about 411.4722600097.
It can be divided in two parts, 69666 and 130, that added together give a palindrome (69796).
The spelling of 69666130 in words is "sixty-nine million, six hundred sixty-six thousand, one hundred thirty".
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