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13109307217 = 232663214033
BaseRepresentation
bin11000011010110000…
…00010011101010001
31020211121110210202221
430031120002131101
5203321440312332
610004453541041
7642601162366
oct141530023521
936747423687
1013109307217
1156179535a6
12265a344781
13130bc23926
148c50a046d
1551ad44297
hex30d602751

13109307217 has 8 divisors (see below), whose sum is σ = 13684477824. Its totient is φ = 12534570048.

The previous prime is 13109307199. The next prime is 13109307229. The reversal of 13109307217 is 71270390131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13109307217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13109307247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45768 + ... + 168265.

It is an arithmetic number, because the mean of its divisors is an integer number (1710559728).

Almost surely, 213109307217 is an apocalyptic number.

It is an amenable number.

13109307217 is a deficient number, since it is larger than the sum of its proper divisors (575170607).

13109307217 is a wasteful number, since it uses less digits than its factorization.

13109307217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216719.

The product of its (nonzero) digits is 7938, while the sum is 34.

Adding to 13109307217 its reverse (71270390131), we get a palindrome (84379697348).

The spelling of 13109307217 in words is "thirteen billion, one hundred nine million, three hundred seven thousand, two hundred seventeen".

Divisors: 1 23 2663 61249 214033 4922759 569969879 13109307217