Base | Representation |
---|---|
bin | 1000010101001… |
… | …10001000010000 |
3 | 11212111121020011 |
4 | 10022212020100 |
5 | 120342331410 |
6 | 10533524304 |
7 | 1506011446 |
oct | 412461020 |
9 | 155447204 |
10 | 69886480 |
11 | 364a3824 |
12 | 1b4a3694 |
13 | 1162bc61 |
14 | 93d2b96 |
15 | 620718a |
hex | 42a6210 |
69886480 has 40 divisors (see below), whose sum is σ = 165161304. Its totient is φ = 27494400.
The previous prime is 69886471. The next prime is 69886483. The reversal of 69886480 is 8468896.
It can be written as a sum of positive squares in 4 ways, for example, as 6906384 + 62980096 = 2628^2 + 7936^2 .
It is a tau number, because it is divible by the number of its divisors (40).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (69886483) 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, 2281 + ... + 12040.
Almost surely, 269886480 is an apocalyptic number.
It is an amenable number.
69886480 is an abundant number, since it is smaller than the sum of its proper divisors (95274824).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
69886480 is a wasteful number, since it uses less digits than its factorization.
69886480 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14395 (or 14389 counting only the distinct ones).
The product of its (nonzero) digits is 663552, while the sum is 49.
The square root of 69886480 is about 8359.8133950466. The cubic root of 69886480 is about 411.9056245329.
It can be divided in two parts, 698 and 86480, that added together give a palindrome (87178).
The spelling of 69886480 in words is "sixty-nine million, eight hundred eighty-six thousand, four hundred eighty".
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