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13129006465 = 5107157156307
BaseRepresentation
bin11000011101000110…
…01011110110000001
31020212222112122001201
430032203023312001
5203342011201330
610010440101201
7643230466531
oct141643136601
936788478051
1013129006465
115627a88973
122664a64801
1313130301a3
148c794b4c1
1551c935eca
hex30e8cbd81

13129006465 has 16 divisors (see below), whose sum is σ = 16003438272. Its totient is φ = 10338704064.

The previous prime is 13129006453. The next prime is 13129006477. The reversal of 13129006465 is 56460092131.

It is an interprime number because it is at equal distance from previous prime (13129006453) and next prime (13129006477).

It is a cyclic number.

It is not a de Polignac number, because 13129006465 - 213 = 13128998273 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5842 + ... + 162148.

It is an arithmetic number, because the mean of its divisors is an integer number (1000214892).

Almost surely, 213129006465 is an apocalyptic number.

It is an amenable number.

13129006465 is a deficient number, since it is larger than the sum of its proper divisors (2874431807).

13129006465 is a wasteful number, since it uses less digits than its factorization.

13129006465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156576.

The product of its (nonzero) digits is 38880, while the sum is 37.

Adding to 13129006465 its reverse (56460092131), we get a palindrome (69589098596).

The spelling of 13129006465 in words is "thirteen billion, one hundred twenty-nine million, six thousand, four hundred sixty-five".

Divisors: 1 5 107 157 535 785 16799 83995 156307 781535 16724849 24540199 83624245 122700995 2625801293 13129006465