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5142979 = 7965101
BaseRepresentation
bin10011100111100111000011
3100200021211201
4103213213003
52304033404
6302122031
761500052
oct23474703
910607751
105142979
1129a2aa6
121880317
1310b0baa
1497c399
156b8ca4
hex4e79c3

5142979 has 4 divisors (see below), whose sum is σ = 5208160. Its totient is φ = 5077800.

The previous prime is 5142967. The next prime is 5142989. The reversal of 5142979 is 9792415.

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 5142979 - 211 = 5140931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5142919) 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, 32472 + ... + 32629.

It is an arithmetic number, because the mean of its divisors is an integer number (1302040).

Almost surely, 25142979 is an apocalyptic number.

5142979 is a deficient number, since it is larger than the sum of its proper divisors (65181).

5142979 is an equidigital number, since it uses as much as digits as its factorization.

5142979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65180.

The product of its digits is 22680, while the sum is 37.

The square root of 5142979 is about 2267.8137048708. The cubic root of 5142979 is about 172.6122380949.

The spelling of 5142979 in words is "five million, one hundred forty-two thousand, nine hundred seventy-nine".

Divisors: 1 79 65101 5142979