Base | Representation |
---|---|
bin | 11110010010101011000001 |
3 | 112221102201202 |
4 | 132102223001 |
5 | 4013101201 |
6 | 442110545 |
7 | 124332011 |
oct | 36225301 |
9 | 15842652 |
10 | 7940801 |
11 | 4534050 |
12 | 27ab455 |
13 | 18504cb |
14 | 10a9c41 |
15 | a6cc6b |
hex | 792ac1 |
7940801 has 4 divisors (see below), whose sum is σ = 8662704. Its totient is φ = 7218900.
The previous prime is 7940789. The next prime is 7940813. The reversal of 7940801 is 1080497.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1080497 = 11 ⋅98227.
It is an interprime number because it is at equal distance from previous prime (7940789) and next prime (7940813).
It is a cyclic number.
It is not a de Polignac number, because 7940801 - 214 = 7924417 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (7940851) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 360935 + ... + 360956.
It is an arithmetic number, because the mean of its divisors is an integer number (2165676).
Almost surely, 27940801 is an apocalyptic number.
It is an amenable number.
7940801 is a deficient number, since it is larger than the sum of its proper divisors (721903).
7940801 is a wasteful number, since it uses less digits than its factorization.
7940801 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 721902.
The product of its (nonzero) digits is 2016, while the sum is 29.
The square root of 7940801 is about 2817.9426892682. The cubic root of 7940801 is about 199.5054531249.
The spelling of 7940801 in words is "seven million, nine hundred forty thousand, eight hundred one".
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