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5130871 = 27718523
BaseRepresentation
bin10011100100101001110111
3100122200020021
4103210221313
52303141441
6301550011
761416544
oct23445167
910580207
105130871
112994999
121875307
1310a8525
14977bcb
156b53d1
hex4e4a77

5130871 has 4 divisors (see below), whose sum is σ = 5149672. Its totient is φ = 5112072.

The previous prime is 5130869. The next prime is 5130913. The reversal of 5130871 is 1780315.

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

It is a cyclic number.

It is not a de Polignac number, because 5130871 - 21 = 5130869 is a prime.

It is a Duffinian number.

5130871 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5130271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8985 + ... + 9538.

It is an arithmetic number, because the mean of its divisors is an integer number (1287418).

Almost surely, 25130871 is an apocalyptic number.

5130871 is a deficient number, since it is larger than the sum of its proper divisors (18801).

5130871 is a wasteful number, since it uses less digits than its factorization.

5130871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18800.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 5130871 is about 2265.1426003676. The cubic root of 5130871 is about 172.4766726139.

The spelling of 5130871 in words is "five million, one hundred thirty thousand, eight hundred seventy-one".

Divisors: 1 277 18523 5130871