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13068440201 = 29450635869
BaseRepresentation
bin11000010101111000…
…01001001010001001
31020201202120112202202
430022330021022021
5203231010041301
610000434005545
7641563623515
oct141274111211
936652515682
1013068440201
1155a6880603
1226487168b5
13130361556b
148bd8a3145
1551747066b
hex30af09289

13068440201 has 4 divisors (see below), whose sum is σ = 13519076100. Its totient is φ = 12617804304.

The previous prime is 13068440183. The next prime is 13068440257. The reversal of 13068440201 is 10204486031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10204486031 = 88411115421.

It can be written as a sum of positive squares in 2 ways, for example, as 10498051600 + 2570388601 = 102460^2 + 50699^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13068440201 is a prime.

It is a super-2 number, since 2×130684402012 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 450635869 = 13068440201 / (1 + 3 + 0 + 6 + 8 + 4 + 4 + 0 + 2 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13068440101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 225317906 + ... + 225317963.

It is an arithmetic number, because the mean of its divisors is an integer number (3379769025).

Almost surely, 213068440201 is an apocalyptic number.

It is an amenable number.

13068440201 is a deficient number, since it is larger than the sum of its proper divisors (450635899).

13068440201 is an equidigital number, since it uses as much as digits as its factorization.

13068440201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450635898.

The product of its (nonzero) digits is 4608, while the sum is 29.

The spelling of 13068440201 in words is "thirteen billion, sixty-eight million, four hundred forty thousand, two hundred one".

Divisors: 1 29 450635869 13068440201