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131460346 = 265730173
BaseRepresentation
bin1111101010111…
…10110011111010
3100011100212200201
413311132303322
5232123212341
621013352414
73154252213
oct765366372
9304325621
10131460346
116822a116
123803870a
132130a3b4
141366040a
15b81b331
hex7d5ecfa

131460346 has 4 divisors (see below), whose sum is σ = 197190522. Its totient is φ = 65730172.

The previous prime is 131460311. The next prime is 131460347. The reversal of 131460346 is 643064131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 643064131 = 4115684491.

It can be written as a sum of positive squares in only one way, i.e., 67059721 + 64400625 = 8189^2 + 8025^2 .

It is not an unprimeable number, because it can be changed into a prime (131460347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32865085 + ... + 32865088.

Almost surely, 2131460346 is an apocalyptic number.

131460346 is a deficient number, since it is larger than the sum of its proper divisors (65730176).

131460346 is an equidigital number, since it uses as much as digits as its factorization.

131460346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65730175.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 131460346 is about 11465.6158142509. The cubic root of 131460346 is about 508.4695191031.

The spelling of 131460346 in words is "one hundred thirty-one million, four hundred sixty thousand, three hundred forty-six".

Divisors: 1 2 65730173 131460346