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131443014 = 23171288657
BaseRepresentation
bin1111101010110…
…10100101000110
3100011022222220210
413311122211012
5232122134024
621013140250
73154150533
oct765324506
9304288823
10131443014
116821809a
123802a686
1321302541
1413657d8a
15b816129
hex7d5a946

131443014 has 16 divisors (see below), whose sum is σ = 278350128. Its totient is φ = 41236992.

The previous prime is 131443009. The next prime is 131443019. The reversal of 131443014 is 410344131.

It is an interprime number because it is at equal distance from previous prime (131443009) and next prime (131443019).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131443019) 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, 644227 + ... + 644430.

It is an arithmetic number, because the mean of its divisors is an integer number (17396883).

Almost surely, 2131443014 is an apocalyptic number.

131443014 is an abundant number, since it is smaller than the sum of its proper divisors (146907114).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131443014 is a wasteful number, since it uses less digits than its factorization.

131443014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1288679.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 131443014 is about 11464.8599642560. The cubic root of 131443014 is about 508.4471722350.

Adding to 131443014 its reverse (410344131), we get a palindrome (541787145).

The spelling of 131443014 in words is "one hundred thirty-one million, four hundred forty-three thousand, fourteen".

Divisors: 1 2 3 6 17 34 51 102 1288657 2577314 3865971 7731942 21907169 43814338 65721507 131443014