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5131879 = 5986981
BaseRepresentation
bin10011100100111001100111
3100122201121121
4103210321213
52303210004
6301554411
761422514
oct23447147
910581547
105131879
112995725
121875a07
1310a8b1c
1497830b
156b5854
hex4e4e67

5131879 has 4 divisors (see below), whose sum is σ = 5218920. Its totient is φ = 5044840.

The previous prime is 5131877. The next prime is 5131891. The reversal of 5131879 is 9781315.

It is a happy number.

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 5131879 - 21 = 5131877 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 (5131871) 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, 43432 + ... + 43549.

It is an arithmetic number, because the mean of its divisors is an integer number (1304730).

Almost surely, 25131879 is an apocalyptic number.

5131879 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

5131879 is a deficient number, since it is larger than the sum of its proper divisors (87041).

5131879 is an equidigital number, since it uses as much as digits as its factorization.

5131879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87040.

The product of its digits is 7560, while the sum is 34.

The square root of 5131879 is about 2265.3650919885. The cubic root of 5131879 is about 172.4879666744.

The spelling of 5131879 in words is "five million, one hundred thirty-one thousand, eight hundred seventy-nine".

Divisors: 1 59 86981 5131879