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131302064 = 2415675237
BaseRepresentation
bin1111101001110…
…00001010110000
3100011001211120102
413310320022300
5232103131224
621010131532
73153022565
oct764701260
9304054512
10131302064
1168131203
1237b80ba8
132128333a
141361c86c
15b7d94ae
hex7d382b0

131302064 has 20 divisors (see below), whose sum is σ = 254608704. Its totient is φ = 65596608.

The previous prime is 131302057. The next prime is 131302069. The reversal of 131302064 is 460203131.

It is not an unprimeable number, because it can be changed into a prime (131302069) 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 3 ways as a sum of consecutive naturals, for example, 22454 + ... + 27690.

Almost surely, 2131302064 is an apocalyptic number.

It is an amenable number.

131302064 is a deficient number, since it is larger than the sum of its proper divisors (123306640).

131302064 is a wasteful number, since it uses less digits than its factorization.

131302064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6812 (or 6806 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 131302064 is about 11458.7112713429. The cubic root of 131302064 is about 508.2653665527.

Adding to 131302064 its reverse (460203131), we get a palindrome (591505195).

The spelling of 131302064 in words is "one hundred thirty-one million, three hundred two thousand, sixty-four".

Divisors: 1 2 4 8 16 1567 3134 5237 6268 10474 12536 20948 25072 41896 83792 8206379 16412758 32825516 65651032 131302064