Base | Representation |
---|---|
bin | 1000010010001100… |
… | …0011010101101001 |
3 | 12201222102210100121 |
4 | 2010203003111221 |
5 | 14023241444400 |
6 | 1004355203241 |
7 | 106051554121 |
oct | 20443032551 |
9 | 5658383317 |
10 | 2223781225 |
11 | a412a2826 |
12 | 5208a6521 |
13 | 295939ba3 |
14 | 1714abc81 |
15 | d036821a |
hex | 848c3569 |
2223781225 has 12 divisors (see below), whose sum is σ = 2758283280. Its totient is φ = 1778512400.
The previous prime is 2223781193. The next prime is 2223781229. The reversal of 2223781225 is 5221873222.
It is not a de Polignac number, because 2223781225 - 25 = 2223781193 is a prime.
It is a super-3 number, since 3×22237812253 (a number of 29 digits) contains 333 as substring.
It is not an unprimeable number, because it can be changed into a prime (2223781229) 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 11 ways as a sum of consecutive naturals, for example, 92730 + ... + 114220.
It is an arithmetic number, because the mean of its divisors is an integer number (229856940).
Almost surely, 22223781225 is an apocalyptic number.
2223781225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
It is an amenable number.
2223781225 is a deficient number, since it is larger than the sum of its proper divisors (534502055).
2223781225 is a wasteful number, since it uses less digits than its factorization.
2223781225 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 25640 (or 25635 counting only the distinct ones).
The product of its digits is 26880, while the sum is 34.
The square root of 2223781225 is about 47156.9849014968. The cubic root of 2223781225 is about 1305.2609735309.
The spelling of 2223781225 in words is "two billion, two hundred twenty-three million, seven hundred eighty-one thousand, two hundred twenty-five".
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