Base | Representation |
---|---|
bin | 11111000011100010011011 |
3 | 120022121021212 |
4 | 133003202123 |
5 | 4041002310 |
6 | 450253335 |
7 | 126124364 |
oct | 37034233 |
9 | 16277255 |
10 | 8140955 |
11 | 4660469 |
12 | 288724b |
13 | 18c0644 |
14 | 111cb6b |
15 | aac205 |
hex | 7c389b |
8140955 has 4 divisors (see below), whose sum is σ = 9769152. Its totient is φ = 6512760.
The previous prime is 8140927. The next prime is 8140961. The reversal of 8140955 is 5590418.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5590418 = 2 ⋅2795209.
It is not a de Polignac number, because 8140955 - 212 = 8136859 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 (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 814091 + ... + 814100.
It is an arithmetic number, because the mean of its divisors is an integer number (2442288).
Almost surely, 28140955 is an apocalyptic number.
8140955 is a deficient number, since it is larger than the sum of its proper divisors (1628197).
8140955 is a wasteful number, since it uses less digits than its factorization.
8140955 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1628196.
The product of its (nonzero) digits is 7200, while the sum is 32.
The square root of 8140955 is about 2853.2358822922. The cubic root of 8140955 is about 201.1677930259.
The spelling of 8140955 in words is "eight million, one hundred forty thousand, nine hundred fifty-five".
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