Base | Representation |
---|---|
bin | 1000011100101… |
… | …01010101101101 |
3 | 11221100101021020 |
4 | 10032111111231 |
5 | 121120210120 |
6 | 11010524353 |
7 | 1520232150 |
oct | 416252555 |
9 | 157311236 |
10 | 70866285 |
11 | 37002986 |
12 | 1b8966b9 |
13 | 118b2c19 |
14 | 95a9c97 |
15 | 634c640 |
hex | 439556d |
70866285 has 96 divisors (see below), whose sum is σ = 145877760. Its totient is φ = 28643328.
The previous prime is 70866277. The next prime is 70866287. The reversal of 70866285 is 58266807.
It is not a de Polignac number, because 70866285 - 23 = 70866277 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (70866287) by changing a digit.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1915287 + ... + 1915323.
It is an arithmetic number, because the mean of its divisors is an integer number (1519560).
Almost surely, 270866285 is an apocalyptic number.
It is an amenable number.
70866285 is an abundant number, since it is smaller than the sum of its proper divisors (75011475).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
70866285 is a wasteful number, since it uses less digits than its factorization.
70866285 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 135 (or 98 counting only the distinct ones).
The product of its (nonzero) digits is 161280, while the sum is 42.
The square root of 70866285 is about 8418.2115083906. The cubic root of 70866285 is about 413.8216634873.
The spelling of 70866285 in words is "seventy million, eight hundred sixty-six thousand, two hundred eighty-five".
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