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13010752681 = 17765338393
BaseRepresentation
bin11000001111000000…
…00101010010101001
31020120202000201100221
430013200011102221
5203121223041211
65551013330041
7640263400363
oct140740052251
936522021327
1013010752681
11557725a073
122631336921
1312c4698034
148b5d67d33
15512377c71
hex3078054a9

13010752681 has 4 divisors (see below), whose sum is σ = 13776091092. Its totient is φ = 12245414272.

The previous prime is 13010752663. The next prime is 13010752739. The reversal of 13010752681 is 18625701031.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5962310656 + 7048442025 = 77216^2 + 83955^2 .

It is a cyclic number.

It is not a de Polignac number, because 13010752681 - 29 = 13010752169 is a prime.

It is a super-2 number, since 2×130107526812 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13010752481) 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, 382669180 + ... + 382669213.

It is an arithmetic number, because the mean of its divisors is an integer number (3444022773).

Almost surely, 213010752681 is an apocalyptic number.

It is an amenable number.

13010752681 is a deficient number, since it is larger than the sum of its proper divisors (765338411).

13010752681 is an equidigital number, since it uses as much as digits as its factorization.

13010752681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765338410.

The product of its (nonzero) digits is 10080, while the sum is 34.

The spelling of 13010752681 in words is "thirteen billion, ten million, seven hundred fifty-two thousand, six hundred eighty-one".

Divisors: 1 17 765338393 13010752681