Base | Representation |
---|---|
bin | 1010101011101001000101 |
3 | 12021021011000 |
4 | 22223221011 |
5 | 1204101242 |
6 | 140003513 |
7 | 32541561 |
oct | 12535105 |
9 | 5237130 |
10 | 2800197 |
11 | 1642914 |
12 | b30599 |
13 | 77072a |
14 | 52c6a1 |
15 | 3a4a4c |
hex | 2aba45 |
2800197 has 16 divisors (see below), whose sum is σ = 4262080. Its totient is φ = 1815696.
The previous prime is 2800159. The next prime is 2800219. The reversal of 2800197 is 7910082.
2800197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 2800197 - 27 = 2800069 is a prime.
It is a super-2 number, since 2×28001972 = 15682206477618, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (27).
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 2800197.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2800397) 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 15 ways as a sum of consecutive naturals, for example, 403 + ... + 2400.
It is an arithmetic number, because the mean of its divisors is an integer number (266380).
22800197 is an apocalyptic number.
2800197 is a gapful number since it is divisible by the number (27) formed by its first and last digit.
It is an amenable number.
2800197 is a deficient number, since it is larger than the sum of its proper divisors (1461883).
2800197 is a wasteful number, since it uses less digits than its factorization.
2800197 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2849 (or 2843 counting only the distinct ones).
The product of its (nonzero) digits is 1008, while the sum is 27.
The square root of 2800197 is about 1673.3789170418. The cubic root of 2800197 is about 140.9492800825.
The spelling of 2800197 in words is "two million, eight hundred thousand, one hundred ninety-seven".
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