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2842129 = 6014729
BaseRepresentation
bin1010110101111000010001
312100101200001
422311320101
51211422004
6140530001
733105043
oct12657021
95311601
102842129
111671374
12b50901
13786844
1453da93
153b21a4
hex2b5e11

2842129 has 4 divisors (see below), whose sum is σ = 2847460. Its totient is φ = 2836800.

The previous prime is 2842127. The next prime is 2842139. The reversal of 2842129 is 9212482.

2842129 = T1375 + T1376 + T1377.

2842129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1046529 + 1795600 = 1023^2 + 1340^2 .

It is a cyclic number.

It is not a de Polignac number, because 2842129 - 21 = 2842127 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2842097 and 2842106.

It is not an unprimeable number, because it can be changed into a prime (2842127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1764 + ... + 2965.

It is an arithmetic number, because the mean of its divisors is an integer number (711865).

22842129 is an apocalyptic number.

2842129 is the 1377-th centered triangular number.

It is an amenable number.

2842129 is a deficient number, since it is larger than the sum of its proper divisors (5331).

2842129 is an equidigital number, since it uses as much as digits as its factorization.

2842129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5330.

The product of its digits is 2304, while the sum is 28.

The square root of 2842129 is about 1685.8615008357. The cubic root of 2842129 is about 141.6493530552.

The spelling of 2842129 in words is "two million, eight hundred forty-two thousand, one hundred twenty-nine".

Divisors: 1 601 4729 2842129