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131301466 = 265650733
BaseRepresentation
bin1111101001110…
…00000001011010
3100011001210202021
413310320001122
5232103121331
621010125054
73153021052
oct764700132
9304053667
10131301466
116813080a
1237b8078a
1321282c9a
141361c562
15b7d9211
hex7d3805a

131301466 has 4 divisors (see below), whose sum is σ = 196952202. Its totient is φ = 65650732.

The previous prime is 131301451. The next prime is 131301479. The reversal of 131301466 is 664103131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 664103131 = 733906007.

It can be written as a sum of positive squares in only one way, i.e., 74736025 + 56565441 = 8645^2 + 7521^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 131301466.

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 as a sum of consecutive naturals, namely, 32825365 + ... + 32825368.

Almost surely, 2131301466 is an apocalyptic number.

131301466 is a deficient number, since it is larger than the sum of its proper divisors (65650736).

131301466 is an equidigital number, since it uses as much as digits as its factorization.

131301466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65650735.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 131301466 is about 11458.6851776284. The cubic root of 131301466 is about 508.2645949396.

Adding to 131301466 its reverse (664103131), we get a palindrome (795404597).

The spelling of 131301466 in words is "one hundred thirty-one million, three hundred one thousand, four hundred sixty-six".

Divisors: 1 2 65650733 131301466