Base | Representation |
---|---|
bin | 111101010010100… |
… | …001101011111001 |
3 | 2122122212100210112 |
4 | 331102201223321 |
5 | 4101214013440 |
6 | 250011154105 |
7 | 34324060142 |
oct | 7522415371 |
9 | 2578770715 |
10 | 1028266745 |
11 | 488480030 |
12 | 248445935 |
13 | 13505627c |
14 | 9a7c8ac9 |
15 | 60416965 |
hex | 3d4a1af9 |
1028266745 has 32 divisors (see below), whose sum is σ = 1393127424. Its totient is φ = 721828800.
The previous prime is 1028266739. The next prime is 1028266769. The reversal of 1028266745 is 5476628201.
It is not a de Polignac number, because 1028266745 - 28 = 1028266489 is a prime.
It is a Duffinian number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1164074 + ... + 1164956.
It is an arithmetic number, because the mean of its divisors is an integer number (43535232).
Almost surely, 21028266745 is an apocalyptic number.
It is an amenable number.
1028266745 is a deficient number, since it is larger than the sum of its proper divisors (364860679).
1028266745 is a wasteful number, since it uses less digits than its factorization.
1028266745 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1613.
The product of its (nonzero) digits is 161280, while the sum is 41.
The square root of 1028266745 is about 32066.5985879388. The cubic root of 1028266745 is about 1009.3348379896.
The spelling of 1028266745 in words is "one billion, twenty-eight million, two hundred sixty-six thousand, seven hundred forty-five".
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