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2830057 = 9832879
BaseRepresentation
bin1010110010111011101001
312022210002221
422302323221
51211030212
6140354041
733024616
oct12627351
95283087
102830057
11166329a
12b45921
137811b9
1453950d
153ad807
hex2b2ee9

2830057 has 4 divisors (see below), whose sum is σ = 2833920. Its totient is φ = 2826196.

The previous prime is 2830049. The next prime is 2830067. The reversal of 2830057 is 7500382.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2830057 - 23 = 2830049 is a prime.

It is a Duffinian number.

2830057 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2830027) 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, 457 + ... + 2422.

It is an arithmetic number, because the mean of its divisors is an integer number (708480).

22830057 is an apocalyptic number.

It is an amenable number.

2830057 is a deficient number, since it is larger than the sum of its proper divisors (3863).

2830057 is an equidigital number, since it uses as much as digits as its factorization.

2830057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3862.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 2830057 is about 1682.2773255323. The cubic root of 2830057 is about 141.4485156087.

The spelling of 2830057 in words is "two million, eight hundred thirty thousand, fifty-seven".

Divisors: 1 983 2879 2830057