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131421314 = 2479137183
BaseRepresentation
bin1111101010101…
…01010010000010
3100011021220011002
413311111102002
5232120440224
621012452002
73154030343
oct765252202
9304256132
10131421314
1168202862
123801a002
13212c56bb
14136500ca
15b80e9ae
hex7d55482

131421314 has 8 divisors (see below), whose sum is σ = 197544960. Its totient is φ = 65572996.

The previous prime is 131421313. The next prime is 131421317. The reversal of 131421314 is 413124131.

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

It is not an unprimeable number, because it can be changed into a prime (131421313) 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 3 ways as a sum of consecutive naturals, for example, 67634 + ... + 69549.

It is an arithmetic number, because the mean of its divisors is an integer number (24693120).

Almost surely, 2131421314 is an apocalyptic number.

131421314 is a deficient number, since it is larger than the sum of its proper divisors (66123646).

131421314 is a wasteful number, since it uses less digits than its factorization.

131421314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137664.

The product of its digits is 288, while the sum is 20.

The square root of 131421314 is about 11463.9135551521. The cubic root of 131421314 is about 508.4191907533.

Adding to 131421314 its reverse (413124131), we get a palindrome (544545445).

The spelling of 131421314 in words is "one hundred thirty-one million, four hundred twenty-one thousand, three hundred fourteen".

Divisors: 1 2 479 958 137183 274366 65710657 131421314