Base | Representation |
---|---|
bin | 11110000011111000100001 |
3 | 112211100122012 |
4 | 132003320201 |
5 | 4004131400 |
6 | 440522305 |
7 | 123660263 |
oct | 36037041 |
9 | 15740565 |
10 | 7880225 |
11 | 44a2591 |
12 | 2780395 |
13 | 182ba72 |
14 | 1091b33 |
15 | a59d35 |
hex | 783e21 |
7880225 has 12 divisors (see below), whose sum is σ = 9808896. Its totient is φ = 6280080.
The previous prime is 7880209. The next prime is 7880227. The reversal of 7880225 is 5220887.
It is not a de Polignac number, because 7880225 - 24 = 7880209 is a prime.
It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 7880191 and 7880200.
It is not an unprimeable number, because it can be changed into a prime (7880227) 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 11 ways as a sum of consecutive naturals, for example, 9164 + ... + 9986.
It is an arithmetic number, because the mean of its divisors is an integer number (817408).
Almost surely, 27880225 is an apocalyptic number.
It is an amenable number.
7880225 is a deficient number, since it is larger than the sum of its proper divisors (1928671).
7880225 is a wasteful number, since it uses less digits than its factorization.
7880225 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1216 (or 1211 counting only the distinct ones).
The product of its (nonzero) digits is 8960, while the sum is 32.
The square root of 7880225 is about 2807.1738457032. The cubic root of 7880225 is about 198.9968518815.
The spelling of 7880225 in words is "seven million, eight hundred eighty thousand, two hundred twenty-five".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.080 sec. • engine limits •