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2842923 = 3947641
BaseRepresentation
bin1010110110000100101011
312100102202110
422312010223
51211433143
6140533403
733110256
oct12660453
95312673
102842923
111671a26
12b51263
13787005
1454009d
153b2533
hex2b612b

2842923 has 4 divisors (see below), whose sum is σ = 3790568. Its totient is φ = 1895280.

The previous prime is 2842901. The next prime is 2842937. The reversal of 2842923 is 3292482.

2842923 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 is not a de Polignac number, because 2842923 - 25 = 2842891 is a prime.

It is a super-2 number, since 2×28429232 = 16164422367858, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2842943) 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, 473818 + ... + 473823.

It is an arithmetic number, because the mean of its divisors is an integer number (947642).

22842923 is an apocalyptic number.

2842923 is a deficient number, since it is larger than the sum of its proper divisors (947645).

2842923 is an equidigital number, since it uses as much as digits as its factorization.

2842923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947644.

The product of its digits is 6912, while the sum is 30.

The square root of 2842923 is about 1686.0969723002. The cubic root of 2842923 is about 141.6625425943.

The spelling of 2842923 in words is "two million, eight hundred forty-two thousand, nine hundred twenty-three".

Divisors: 1 3 947641 2842923