Base | Representation |
---|---|
bin | 11100100100011000011001 |
3 | 112002111001012 |
4 | 130210120121 |
5 | 3404122144 |
6 | 424303305 |
7 | 120440651 |
oct | 34443031 |
9 | 15074035 |
10 | 7489049 |
11 | 42556a7 |
12 | 2611b35 |
13 | 17229b9 |
14 | dcd361 |
15 | 9cde9e |
hex | 724619 |
7489049 has 4 divisors (see below), whose sum is σ = 7563300. Its totient is φ = 7414800.
The previous prime is 7489043. The next prime is 7489051. The reversal of 7489049 is 9409847.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9409847 = 281 ⋅33487.
It can be written as a sum of positive squares in 2 ways, for example, as 6150400 + 1338649 = 2480^2 + 1157^2 .
It is a cyclic number.
It is not a de Polignac number, because 7489049 - 24 = 7489033 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 7488997 and 7489015.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (7489043) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36974 + ... + 37175.
It is an arithmetic number, because the mean of its divisors is an integer number (1890825).
Almost surely, 27489049 is an apocalyptic number.
It is an amenable number.
7489049 is a deficient number, since it is larger than the sum of its proper divisors (74251).
7489049 is a wasteful number, since it uses less digits than its factorization.
7489049 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 74250.
The product of its (nonzero) digits is 72576, while the sum is 41.
The square root of 7489049 is about 2736.6126872468. The cubic root of 7489049 is about 195.6480651726.
The spelling of 7489049 in words is "seven million, four hundred eighty-nine thousand, forty-nine".
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