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131443414 = 267980921
BaseRepresentation
bin1111101010110…
…10101011010110
3100011100000110121
413311122223112
5232122142124
621013142154
73154151644
oct765325326
9304300417
10131443414
1168218423
123802a95a
132130278b
1413658194
15b8162e4
hex7d5aad6

131443414 has 8 divisors (see below), whose sum is σ = 200108088. Its totient is φ = 64740720.

The previous prime is 131443409. The next prime is 131443447. The reversal of 131443414 is 414344131.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 490327 + ... + 490594.

It is an arithmetic number, because the mean of its divisors is an integer number (25013511).

Almost surely, 2131443414 is an apocalyptic number.

131443414 is a deficient number, since it is larger than the sum of its proper divisors (68664674).

131443414 is an equidigital number, since it uses as much as digits as its factorization.

131443414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980990.

The product of its digits is 2304, while the sum is 25.

The square root of 131443414 is about 11464.8774088518. The cubic root of 131443414 is about 508.4476879938.

Adding to 131443414 its reverse (414344131), we get a palindrome (545787545).

The spelling of 131443414 in words is "one hundred thirty-one million, four hundred forty-three thousand, four hundred fourteen".

Divisors: 1 2 67 134 980921 1961842 65721707 131443414