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131044 = 221812
BaseRepresentation
bin11111111111100100
320122202111
4133333210
513143134
62450404
71054024
oct377744
9218674
10131044
118a501
1263a04
1347854
1435a84
1528c64
hex1ffe4

131044 has 9 divisors (see below), whose sum is σ = 230601. Its totient is φ = 65160.

The previous prime is 131041. The next prime is 131059. The reversal of 131044 is 440131.

Adding to 131044 its reverse (440131), we get a palindrome (571175).

131044 = T361 + T362.

The square root of 131044 is 362.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1444 + 129600 = 38^2 + 360^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131041) 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 2 ways as a sum of consecutive naturals, for example, 634 + ... + 814.

2131044 is an apocalyptic number.

131044 is the 362-nd square number.

It is an amenable number.

131044 is a deficient number, since it is larger than the sum of its proper divisors (99557).

131044 is an equidigital number, since it uses as much as digits as its factorization.

131044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366 (or 183 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The cubic root of 131044 is about 50.7932162806.

The spelling of 131044 in words is "one hundred thirty-one thousand, forty-four".

Divisors: 1 2 4 181 362 724 32761 65522 131044