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5128279 = 131133491
BaseRepresentation
bin10011100100000001010111
3100122112200021
4103210001113
52303101104
6301530011
761406152
oct23440127
910575607
105128279
112992a52
121873907
1310a72b0
14976c99
156b4754
hex4e4057

5128279 has 8 divisors (see below), whose sum is σ = 5573232. Its totient is φ = 4690560.

The previous prime is 5128261. The next prime is 5128283. The reversal of 5128279 is 9728215.

5128279 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5128279 - 29 = 5127767 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 (5128219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 277 + ... + 3214.

It is an arithmetic number, because the mean of its divisors is an integer number (696654).

Almost surely, 25128279 is an apocalyptic number.

5128279 is a deficient number, since it is larger than the sum of its proper divisors (444953).

5128279 is a wasteful number, since it uses less digits than its factorization.

5128279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3617.

The product of its digits is 10080, while the sum is 34.

The square root of 5128279 is about 2264.5703786811. The cubic root of 5128279 is about 172.4476239503.

The spelling of 5128279 in words is "five million, one hundred twenty-eight thousand, two hundred seventy-nine".

Divisors: 1 13 113 1469 3491 45383 394483 5128279