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131341005 = 3252918689
BaseRepresentation
bin1111101010000…
…01101011001101
3100011010210222200
413311001223031
5232110403010
621011032113
73153244245
oct765015315
9304123880
10131341005
1168158494
1237b9b639
1321297c93
141362cb25
15b7e5cc0
hex7d41acd

131341005 has 12 divisors (see below), whose sum is σ = 227657820. Its totient is φ = 70048512.

The previous prime is 131341003. The next prime is 131341013. The reversal of 131341005 is 500143131.

It can be written as a sum of positive squares in 2 ways, for example, as 98128836 + 33212169 = 9906^2 + 5763^2 .

It is not a de Polignac number, because 131341005 - 21 = 131341003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131341003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1459300 + ... + 1459389.

It is an arithmetic number, because the mean of its divisors is an integer number (18971485).

Almost surely, 2131341005 is an apocalyptic number.

131341005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131341005 is a deficient number, since it is larger than the sum of its proper divisors (96316815).

131341005 is a wasteful number, since it uses less digits than its factorization.

131341005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2918700 (or 2918697 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 131341005 is about 11460.4103329680. The cubic root of 131341005 is about 508.3156079698.

Adding to 131341005 its reverse (500143131), we get a palindrome (631484136).

The spelling of 131341005 in words is "one hundred thirty-one million, three hundred forty-one thousand, five".

Divisors: 1 3 5 9 15 45 2918689 8756067 14593445 26268201 43780335 131341005