Base | Representation |
---|---|
bin | 100010000010010… |
… | …0100010111010111 |
3 | 2221120222001122001 |
4 | 1010010210113113 |
5 | 4314331020330 |
6 | 305154020131 |
7 | 40205151430 |
oct | 10404442727 |
9 | 2846861561 |
10 | 1142048215 |
11 | 536724800 |
12 | 27a577647 |
13 | 1527b3899 |
14 | ab966487 |
15 | 6a3de9ca |
hex | 441245d7 |
1142048215 has 48 divisors (see below), whose sum is σ = 1777305600. Its totient is φ = 688881600.
The previous prime is 1142048213. The next prime is 1142048227. The reversal of 1142048215 is 5128402411.
It is not a de Polignac number, because 1142048215 - 21 = 1142048213 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1142048213) 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 47 ways as a sum of consecutive naturals, for example, 126936 + ... + 135634.
It is an arithmetic number, because the mean of its divisors is an integer number (37027200).
Almost surely, 21142048215 is an apocalyptic number.
1142048215 is a deficient number, since it is larger than the sum of its proper divisors (635257385).
1142048215 is a wasteful number, since it uses less digits than its factorization.
1142048215 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8764 (or 8753 counting only the distinct ones).
The product of its (nonzero) digits is 2560, while the sum is 28.
The square root of 1142048215 is about 33794.2038669355. The cubic root of 1142048215 is about 1045.2691827325.
The spelling of 1142048215 in words is "one billion, one hundred forty-two million, forty-eight thousand, two hundred fifteen".
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