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14427143 = 831011721
BaseRepresentation
bin110111000010…
…010000000111
31000010222022122
4313002100013
512143132033
61233120155
7233425433
oct67022007
930128278
1014427143
118164365
1249b905b
132cb1993
141cb79c3
1513eea98
hexdc2407

14427143 has 8 divisors (see below), whose sum is σ = 14754096. Its totient is φ = 14104000.

The previous prime is 14427139. The next prime is 14427157. The reversal of 14427143 is 34172441.

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 14427143 - 22 = 14427139 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 (14427103) 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, 7523 + ... + 9243.

It is an arithmetic number, because the mean of its divisors is an integer number (1844262).

Almost surely, 214427143 is an apocalyptic number.

14427143 is a deficient number, since it is larger than the sum of its proper divisors (326953).

14427143 is a wasteful number, since it uses less digits than its factorization.

14427143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1905.

The product of its digits is 2688, while the sum is 26.

The square root of 14427143 is about 3798.3079127422. The cubic root of 14427143 is about 243.4408442581.

Adding to 14427143 its reverse (34172441), we get a palindrome (48599584).

The spelling of 14427143 in words is "fourteen million, four hundred twenty-seven thousand, one hundred forty-three".

Divisors: 1 83 101 1721 8383 142843 173821 14427143