Base | Representation |
---|---|
bin | 1000010011001110… |
… | …0101011001010111 |
3 | 12202021120222012221 |
4 | 2010303211121113 |
5 | 14030344140111 |
6 | 1005032123211 |
7 | 106133444122 |
oct | 20463453127 |
9 | 5667528187 |
10 | 2228115031 |
11 | a4379288a |
12 | 522236507 |
13 | 2967c667c |
14 | 171cb93b9 |
15 | d0922371 |
hex | 84ce5657 |
2228115031 has 4 divisors (see below), whose sum is σ = 2228956272. Its totient is φ = 2227273792.
The previous prime is 2228115017. The next prime is 2228115053. The reversal of 2228115031 is 1305118222.
2228115031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 2228115031 - 29 = 2228114519 is a prime.
It is a super-2 number, since 2×22281150312 = 9928993182736261922, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 2228114987 and 2228115005.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2228115011) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 416635 + ... + 421948.
It is an arithmetic number, because the mean of its divisors is an integer number (557239068).
Almost surely, 22228115031 is an apocalyptic number.
2228115031 is a deficient number, since it is larger than the sum of its proper divisors (841241).
2228115031 is an equidigital number, since it uses as much as digits as its factorization.
2228115031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 841240.
The product of its (nonzero) digits is 960, while the sum is 25.
The square root of 2228115031 is about 47202.9133740705. The cubic root of 2228115031 is about 1306.1083406249.
The spelling of 2228115031 in words is "two billion, two hundred twenty-eight million, one hundred fifteen thousand, thirty-one".
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