Base | Representation |
---|---|
bin | 1001010101111110… |
… | …0000000100001001 |
3 | 20110210100210121200 |
4 | 2111133200010021 |
5 | 20114031003420 |
6 | 1052512254413 |
7 | 116103116661 |
oct | 22537400411 |
9 | 6423323550 |
10 | 2508062985 |
11 | 107781092a |
12 | 59bb41409 |
13 | 30c7c344c |
14 | 19b14d1a1 |
15 | ea2beb90 |
hex | 957e0109 |
2508062985 has 48 divisors (see below), whose sum is σ = 4600128000. Its totient is φ = 1260582912.
The previous prime is 2508062981. The next prime is 2508062993. The reversal of 2508062985 is 5892608052.
2508062985 is a `hidden beast` number, since 2 + 508 + 0 + 62 + 9 + 85 = 666.
It is not a de Polignac number, because 2508062985 - 22 = 2508062981 is a prime.
It is a super-2 number, since 2×25080629852 = 12580759873454220450, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 2508062985.
It is not an unprimeable number, because it can be changed into a prime (2508062981) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 157416 + ... + 172614.
It is an arithmetic number, because the mean of its divisors is an integer number (95836000).
Almost surely, 22508062985 is an apocalyptic number.
It is an amenable number.
2508062985 is a deficient number, since it is larger than the sum of its proper divisors (2092065015).
2508062985 is a wasteful number, since it uses less digits than its factorization.
2508062985 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 15422 (or 15419 counting only the distinct ones).
The product of its (nonzero) digits is 345600, while the sum is 45.
The square root of 2508062985 is about 50080.5649428998. The cubic root of 2508062985 is about 1358.6663297240. Note that the first 3 decimals are identical.
The spelling of 2508062985 in words is "two billion, five hundred eight million, sixty-two thousand, nine hundred eighty-five".
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