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5490605 = 51098121
BaseRepresentation
bin10100111100011110101101
3101022221200202
4110330132231
52401144410
6313403245
764445411
oct24743655
911287622
105490605
11311019a
121a09525
1311a31a3
14a2cd41
15736ca5
hex53c7ad

5490605 has 4 divisors (see below), whose sum is σ = 6588732. Its totient is φ = 4392480.

The previous prime is 5490593. The next prime is 5490607. The reversal of 5490605 is 5060945.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5060945 = 51012189.

It can be written as a sum of positive squares in 2 ways, for example, as 3632836 + 1857769 = 1906^2 + 1363^2 .

It is a de Polignac number, because none of the positive numbers 2k-5490605 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5490607) 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, 549056 + ... + 549065.

It is an arithmetic number, because the mean of its divisors is an integer number (1647183).

Almost surely, 25490605 is an apocalyptic number.

It is an amenable number.

5490605 is a deficient number, since it is larger than the sum of its proper divisors (1098127).

5490605 is a wasteful number, since it uses less digits than its factorization.

5490605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1098126.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 5490605 is about 2343.2040030693. The cubic root of 5490605 is about 176.4168515360.

The spelling of 5490605 in words is "five million, four hundred ninety thousand, six hundred five".

Divisors: 1 5 1098121 5490605