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131244055 = 578733353
BaseRepresentation
bin1111101001010…
…10000000010111
3100010221212222221
413310222000113
5232044302210
621005003211
73152361505
oct764520027
9303855887
10131244055
11680a1668
1237b53507
1321262b07
1413605675
15b7c71da
hex7d2a017

131244055 has 8 divisors (see below), whose sum is σ = 157697712. Its totient is φ = 104858688.

The previous prime is 131244037. The next prime is 131244119. The reversal of 131244055 is 550442131.

It is a happy number.

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 131244055 - 217 = 131112983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 12742 + ... + 20611.

It is an arithmetic number, because the mean of its divisors is an integer number (19712214).

Almost surely, 2131244055 is an apocalyptic number.

131244055 is a deficient number, since it is larger than the sum of its proper divisors (26453657).

131244055 is an equidigital number, since it uses as much as digits as its factorization.

131244055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34145.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 131244055 is about 11456.1797733800. The cubic root of 131244055 is about 508.1905053057.

Adding to 131244055 its reverse (550442131), we get a palindrome (681686186).

The spelling of 131244055 in words is "one hundred thirty-one million, two hundred forty-four thousand, fifty-five".

Divisors: 1 5 787 3935 33353 166765 26248811 131244055