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5198405 = 51039681
BaseRepresentation
bin10011110101001001000101
3100210002212112
4103311021011
52312322110
6303230405
762120462
oct23651105
910702775
105198405
112a30703
1218a8405
1311001a4
14994669
156ca405
hex4f5245

5198405 has 4 divisors (see below), whose sum is σ = 6238092. Its totient is φ = 4158720.

The previous prime is 5198387. The next prime is 5198423. The reversal of 5198405 is 5048915.

5198405 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (5198387) and next prime (5198423).

It can be written as a sum of positive squares in 2 ways, for example, as 3034564 + 2163841 = 1742^2 + 1471^2 .

It is a de Polignac number, because none of the positive numbers 2k-5198405 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 519836 + ... + 519845.

It is an arithmetic number, because the mean of its divisors is an integer number (1559523).

Almost surely, 25198405 is an apocalyptic number.

It is an amenable number.

5198405 is a deficient number, since it is larger than the sum of its proper divisors (1039687).

5198405 is a wasteful number, since it uses less digits than its factorization.

5198405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039686.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 5198405 is about 2280.0010964910. The cubic root of 5198405 is about 173.2301057776.

The spelling of 5198405 in words is "five million, one hundred ninety-eight thousand, four hundred five".

Divisors: 1 5 1039681 5198405