Base | Representation |
---|---|
bin | 11011001001100101011101 |
3 | 111101120220010 |
4 | 123021211131 |
5 | 3310222044 |
6 | 412313433 |
7 | 114331464 |
oct | 33114535 |
9 | 14346803 |
10 | 7117149 |
11 | 4021246 |
12 | 2472879 |
13 | 1622640 |
14 | d339db |
15 | 958bb9 |
hex | 6c995d |
7117149 has 16 divisors (see below), whose sum is σ = 10471104. Its totient is φ = 4272000.
The previous prime is 7117147. The next prime is 7117171. The reversal of 7117149 is 9417117.
It is not a de Polignac number, because 7117149 - 21 = 7117147 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (7117141) 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 15 ways as a sum of consecutive naturals, for example, 627 + ... + 3824.
It is an arithmetic number, because the mean of its divisors is an integer number (654444).
Almost surely, 27117149 is an apocalyptic number.
It is an amenable number.
7117149 is a deficient number, since it is larger than the sum of its proper divisors (3353955).
7117149 is a wasteful number, since it uses less digits than its factorization.
7117149 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4508.
The product of its digits is 1764, while the sum is 30.
The square root of 7117149 is about 2667.7985306241. The cubic root of 7117149 is about 192.3543532026.
Subtracting 7117149 from its reverse (9417117), we obtain a cube (2299968 = 1323).
The spelling of 7117149 in words is "seven million, one hundred seventeen thousand, one hundred forty-nine".
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