Base | Representation |
---|---|
bin | 1010011101010011… |
… | …0111011101100101 |
3 | 21020122100211210102 |
4 | 2213110313131211 |
5 | 21222124441000 |
6 | 1142321233445 |
7 | 126365234300 |
oct | 24724673545 |
9 | 7218324712 |
10 | 2807265125 |
11 | 121069a925 |
12 | 664192885 |
13 | 3597a2032 |
14 | 1c8b95b37 |
15 | 1166c23d5 |
hex | a7537765 |
2807265125 has 36 divisors (see below), whose sum is σ = 4081490244. Its totient is φ = 1922138400.
The previous prime is 2807265089. The next prime is 2807265127. The reversal of 2807265125 is 5215627082.
It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.
It can be written as a sum of positive squares in 6 ways, for example, as 29658916 + 2777606209 = 5446^2 + 52703^2 .
It is not a de Polignac number, because 2807265125 - 226 = 2740156261 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2807265127) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4146287 + ... + 4146963.
It is an arithmetic number, because the mean of its divisors is an integer number (113374729).
Almost surely, 22807265125 is an apocalyptic number.
2807265125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
It is an amenable number.
2807265125 is a deficient number, since it is larger than the sum of its proper divisors (1274225119).
2807265125 is an frugal number, since it uses more digits than its factorization.
2807265125 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1383 (or 689 counting only the distinct ones).
The product of its (nonzero) digits is 67200, while the sum is 38.
The square root of 2807265125 is about 52983.6307268575. The cubic root of 2807265125 is about 1410.6777294531.
The spelling of 2807265125 in words is "two billion, eight hundred seven million, two hundred sixty-five thousand, one hundred twenty-five".
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