Base | Representation |
---|---|
bin | 1010101101010101010101 |
3 | 12021121122121 |
4 | 22231111111 |
5 | 1204312000 |
6 | 140055541 |
7 | 32601016 |
oct | 12552525 |
9 | 5247577 |
10 | 2807125 |
11 | 1648042 |
12 | b345b1 |
13 | 773929 |
14 | 53100d |
15 | 3a6b1a |
hex | 2ad555 |
2807125 has 16 divisors (see below), whose sum is σ = 3712176. Its totient is φ = 2112000.
The previous prime is 2807111. The next prime is 2807131. The reversal of 2807125 is 5217082.
It can be written as a sum of positive squares in 8 ways, for example, as 114244 + 2692881 = 338^2 + 1641^2 .
It is not a de Polignac number, because 2807125 - 29 = 2806613 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (25).
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 2807125.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1465 + ... + 2785.
It is an arithmetic number, because the mean of its divisors is an integer number (232011).
22807125 is an apocalyptic number.
2807125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
It is an amenable number.
2807125 is a deficient number, since it is larger than the sum of its proper divisors (905051).
2807125 is a wasteful number, since it uses less digits than its factorization.
2807125 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1353 (or 1343 counting only the distinct ones).
The product of its (nonzero) digits is 1120, while the sum is 25.
The square root of 2807125 is about 1675.4477013622. The cubic root of 2807125 is about 141.0654257676.
The spelling of 2807125 in words is "two million, eight hundred seven thousand, one hundred twenty-five".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.082 sec. • engine limits •