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131334479 = 1916342407
BaseRepresentation
bin1111101010000…
…00000101001111
3100011010111000222
413311000011033
5232110200404
621010541555
73153216233
oct765000517
9304114028
10131334479
11681535a1
1237b978bb
1321295013
141362a5c3
15b7e3dbe
hex7d4014f

131334479 has 8 divisors (see below), whose sum is σ = 139098240. Its totient is φ = 123655896.

The previous prime is 131334461. The next prime is 131334493. The reversal of 131334479 is 974433131.

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 131334479 - 28 = 131334223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131334409) 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, 18107 + ... + 24300.

It is an arithmetic number, because the mean of its divisors is an integer number (17387280).

Almost surely, 2131334479 is an apocalyptic number.

131334479 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

131334479 is a deficient number, since it is larger than the sum of its proper divisors (7763761).

131334479 is a wasteful number, since it uses less digits than its factorization.

131334479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42589.

The product of its digits is 27216, while the sum is 35.

The square root of 131334479 is about 11460.1256101319. The cubic root of 131334479 is about 508.3071888611.

The spelling of 131334479 in words is "one hundred thirty-one million, three hundred thirty-four thousand, four hundred seventy-nine".

Divisors: 1 19 163 3097 42407 805733 6912341 131334479