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1330143 = 32915289
BaseRepresentation
bin101000100101111011111
32111120121120
411010233133
5320031033
644302023
714206653
oct5045737
92446546
101330143
118293a1
12541913
13377589
14268a63
151b41b3
hex144bdf

1330143 has 8 divisors (see below), whose sum is σ = 1834800. Its totient is φ = 856128.

The previous prime is 1330129. The next prime is 1330157. The reversal of 1330143 is 3410331.

It is an interprime number because it is at equal distance from previous prime (1330129) and next prime (1330157).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1330143 - 25 = 1330111 is a prime.

1330143 is a lucky number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1330103) 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 7 ways as a sum of consecutive naturals, for example, 7558 + ... + 7731.

It is an arithmetic number, because the mean of its divisors is an integer number (229350).

21330143 is an apocalyptic number.

1330143 is a deficient number, since it is larger than the sum of its proper divisors (504657).

1330143 is a wasteful number, since it uses less digits than its factorization.

1330143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15321.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 1330143 is about 1153.3182561635. The cubic root of 1330143 is about 109.9763861157.

Adding to 1330143 its reverse (3410331), we get a palindrome (4740474).

The spelling of 1330143 in words is "one million, three hundred thirty thousand, one hundred forty-three".

Divisors: 1 3 29 87 15289 45867 443381 1330143