Base | Representation |
---|---|
bin | 1010001111001011… |
… | …0010011110010001 |
3 | 21002111211212112011 |
4 | 2203302302132101 |
5 | 21111442001040 |
6 | 1132403102521 |
7 | 125045421142 |
oct | 24362623621 |
9 | 7074755464 |
10 | 2748000145 |
11 | 11901a1200 |
12 | 648371a41 |
13 | 34a4217b7 |
14 | 1c0d69ac9 |
15 | 1113b73ea |
hex | a3cb2791 |
2748000145 has 12 divisors (see below), whose sum is σ = 3624635700. Its totient is φ = 1998545120.
The previous prime is 2748000061. The next prime is 2748000149. The reversal of 2748000145 is 5410008472.
2748000145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 2 ways, for example, as 746600976 + 2001399169 = 27324^2 + 44737^2 .
It is not a de Polignac number, because 2748000145 - 29 = 2747999633 is a prime.
It is not an unprimeable number, because it can be changed into a prime (2748000149) 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, 2270470 + ... + 2271679.
It is an arithmetic number, because the mean of its divisors is an integer number (302052975).
Almost surely, 22748000145 is an apocalyptic number.
It is an amenable number.
2748000145 is a deficient number, since it is larger than the sum of its proper divisors (876635555).
2748000145 is a wasteful number, since it uses less digits than its factorization.
2748000145 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4542176 (or 4542165 counting only the distinct ones).
The product of its (nonzero) digits is 8960, while the sum is 31.
The square root of 2748000145 is about 52421.3710713484. The cubic root of 2748000145 is about 1400.6799664621.
The spelling of 2748000145 in words is "two billion, seven hundred forty-eight million, one hundred forty-five", and thus it is an aban number.
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