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2443142191 = 7421182883
BaseRepresentation
bin1001000110011111…
…0110010000101111
320022021012111000211
42101213312100233
520000421022231
61042233003251
7114354236350
oct22147662057
96267174024
102443142191
1110440a9986
12582253527
132cc212789
1419268dd27
15e4748eb1
hex919f642f

2443142191 has 8 divisors (see below), whose sum is σ = 2792859264. Its totient is φ = 2093599320.

The previous prime is 2443142183. The next prime is 2443142231. The reversal of 2443142191 is 1912413442.

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 2443142191 - 23 = 2443142183 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 (2443142111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11965 + ... + 70918.

It is an arithmetic number, because the mean of its divisors is an integer number (349107408).

Almost surely, 22443142191 is an apocalyptic number.

2443142191 is a deficient number, since it is larger than the sum of its proper divisors (349717073).

2443142191 is an equidigital number, since it uses as much as digits as its factorization.

2443142191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87101.

The product of its digits is 6912, while the sum is 31.

The square root of 2443142191 is about 49428.1518064352. The cubic root of 2443142191 is about 1346.8407498937.

The spelling of 2443142191 in words is "two billion, four hundred forty-three million, one hundred forty-two thousand, one hundred ninety-one".

Divisors: 1 7 4211 29477 82883 580181 349020313 2443142191