Base | Representation |
---|---|
bin | 111011110011000… |
… | …0001101100111001 |
3 | 12011211111120202121 |
4 | 1313212001230321 |
5 | 13102123112040 |
6 | 531033201241 |
7 | 100502414200 |
oct | 16746015471 |
9 | 5154446677 |
10 | 2006457145 |
11 | 93a657a50 |
12 | 47bb60221 |
13 | 25c8c8464 |
14 | 15069a237 |
15 | bb23ac4a |
hex | 77981b39 |
2006457145 has 24 divisors (see below), whose sum is σ = 3055477248. Its totient is φ = 1250776800.
The previous prime is 2006457109. The next prime is 2006457157. The reversal of 2006457145 is 5417546002.
It is not a de Polignac number, because 2006457145 - 223 = 1998068537 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 2006457145.
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 23 ways as a sum of consecutive naturals, for example, 369561 + ... + 374950.
It is an arithmetic number, because the mean of its divisors is an integer number (127311552).
Almost surely, 22006457145 is an apocalyptic number.
It is an amenable number.
2006457145 is a deficient number, since it is larger than the sum of its proper divisors (1049020103).
2006457145 is a wasteful number, since it uses less digits than its factorization.
2006457145 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 744541 (or 744534 counting only the distinct ones).
The product of its (nonzero) digits is 33600, while the sum is 34.
The square root of 2006457145 is about 44793.4944495292. The cubic root of 2006457145 is about 1261.2755087674.
The spelling of 2006457145 in words is "two billion, six million, four hundred fifty-seven thousand, one hundred forty-five".
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