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131150441 = 2925717597
BaseRepresentation
bin1111101000100…
…11001001101001
3100010210010120202
413310103021221
5232033303231
621003001545
73151521542
oct764231151
9303703522
10131150441
11680382a4
1237b092b5
132122c316
14135bd4c9
15b7a95cb
hex7d13269

131150441 has 8 divisors (see below), whose sum is σ = 136208520. Its totient is φ = 126128128.

The previous prime is 131150389. The next prime is 131150447. The reversal of 131150441 is 144051131.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 22052416 + 109098025 = 4696^2 + 10445^2 .

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 131150441 - 218 = 130888297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131150447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1346 + ... + 16251.

It is an arithmetic number, because the mean of its divisors is an integer number (17026065).

Almost surely, 2131150441 is an apocalyptic number.

It is an amenable number.

131150441 is a deficient number, since it is larger than the sum of its proper divisors (5058079).

131150441 is a wasteful number, since it uses less digits than its factorization.

131150441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17883.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 131150441 is about 11452.0933020998. The cubic root of 131150441 is about 508.0696488814.

The spelling of 131150441 in words is "one hundred thirty-one million, one hundred fifty thousand, four hundred forty-one".

Divisors: 1 29 257 7453 17597 510313 4522429 131150441