Base | Representation |
---|---|
bin | 1010101000101100… |
… | …0000011010100111 |
3 | 21100222012122012110 |
4 | 2222023000122213 |
5 | 21321340341012 |
6 | 1151144452103 |
7 | 130515126111 |
oct | 25213003247 |
9 | 7328178173 |
10 | 2855012007 |
11 | 1235641861 |
12 | 67817a033 |
13 | 36664ba23 |
14 | 1d12643b1 |
15 | 11a9a473c |
hex | aa2c06a7 |
2855012007 has 12 divisors (see below), whose sum is σ = 3829384104. Its totient is φ = 1892000160.
The previous prime is 2855011963. The next prime is 2855012021. The reversal of 2855012007 is 7002105582.
It is not a de Polignac number, because 2855012007 - 226 = 2787903143 is a prime.
It is a super-2 number, since 2×28550120072 = 16302187120228336098, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2855019007) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1243953 + ... + 1246245.
It is an arithmetic number, because the mean of its divisors is an integer number (319115342).
Almost surely, 22855012007 is an apocalyptic number.
2855012007 is a deficient number, since it is larger than the sum of its proper divisors (974372097).
2855012007 is an frugal number, since it uses more digits than its factorization.
2855012007 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4770 (or 2477 counting only the distinct ones).
The product of its (nonzero) digits is 5600, while the sum is 30.
The square root of 2855012007 is about 53432.3123867946. The cubic root of 2855012007 is about 1418.6305661213.
Adding to 2855012007 its reverse (7002105582), we get a palindrome (9857117589).
The spelling of 2855012007 in words is "two billion, eight hundred fifty-five million, twelve thousand, seven".
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