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5490049 = 46111909
BaseRepresentation
bin10100111100010110000001
3101022220221011
4110330112001
52401140144
6313400521
764443655
oct24742601
911286834
105490049
11310a834
121a09141
1311a2b66
14a2ca65
15736a34
hex53c581

5490049 has 4 divisors (see below), whose sum is σ = 5502420. Its totient is φ = 5477680.

The previous prime is 5490041. The next prime is 5490053. The reversal of 5490049 is 9400945.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9400945 = 51880189.

It can be written as a sum of positive squares in 2 ways, for example, as 1803649 + 3686400 = 1343^2 + 1920^2 .

It is a cyclic number.

It is not a de Polignac number, because 5490049 - 23 = 5490041 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 5490049.

It is not an unprimeable number, because it can be changed into a prime (5490041) 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, 5494 + ... + 6415.

It is an arithmetic number, because the mean of its divisors is an integer number (1375605).

Almost surely, 25490049 is an apocalyptic number.

It is an amenable number.

5490049 is a deficient number, since it is larger than the sum of its proper divisors (12371).

5490049 is a wasteful number, since it uses less digits than its factorization.

5490049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12370.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 5490049 is about 2343.0853590939. The cubic root of 5490049 is about 176.4108964497.

The spelling of 5490049 in words is "five million, four hundred ninety thousand, forty-nine".

Divisors: 1 461 11909 5490049