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5131471 = 43911689
BaseRepresentation
bin10011100100110011001111
3100122201001111
4103210303033
52303201341
6301552451
761421362
oct23446317
910581044
105131471
112995394
121875727
1310a8897
149780d9
156b5681
hex4e4ccf

5131471 has 4 divisors (see below), whose sum is σ = 5143600. Its totient is φ = 5119344.

The previous prime is 5131459. The next prime is 5131481. The reversal of 5131471 is 1741315.

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 5131471 - 25 = 5131439 is a prime.

It is a super-3 number, since 3×51314713 (a number of 21 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5131421) 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, 5406 + ... + 6283.

It is an arithmetic number, because the mean of its divisors is an integer number (1285900).

Almost surely, 25131471 is an apocalyptic number.

5131471 is a deficient number, since it is larger than the sum of its proper divisors (12129).

5131471 is a wasteful number, since it uses less digits than its factorization.

5131471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12128.

The product of its digits is 420, while the sum is 22.

The square root of 5131471 is about 2265.2750384887. The cubic root of 5131471 is about 172.4833954472.

Adding to 5131471 its reverse (1741315), we get a palindrome (6872786).

It can be divided in two parts, 5131 and 471, that multiplied together give a triangular number (2416701 = T2198).

The spelling of 5131471 in words is "five million, one hundred thirty-one thousand, four hundred seventy-one".

Divisors: 1 439 11689 5131471