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13135211297 = 1310113971971
BaseRepresentation
bin11000011101110101…
…10110101100100001
31020220102012212111022
430032322312230201
5203400103230142
610011221055225
7643334311445
oct141672665441
936812185438
1013135211297
11563053672a
122666b57515
1313143c34a0
148c86c4825
1551d25e6d2
hex30eeb6b21

13135211297 has 16 divisors (see below), whose sum is σ = 14388642240. Its totient is φ = 11918232000.

The previous prime is 13135211293. The next prime is 13135211303. The reversal of 13135211297 is 79211253131.

It is a cyclic number.

It is not a de Polignac number, because 13135211297 - 22 = 13135211293 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13135211293) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146522 + ... + 218492.

It is an arithmetic number, because the mean of its divisors is an integer number (899290140).

Almost surely, 213135211297 is an apocalyptic number.

It is an amenable number.

13135211297 is a deficient number, since it is larger than the sum of its proper divisors (1253430943).

13135211297 is a wasteful number, since it uses less digits than its factorization.

13135211297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72224.

The product of its digits is 11340, while the sum is 35.

It can be divided in two parts, 1313 and 5211297, that multiplied together give a square (6842432961 = 827192).

The spelling of 13135211297 in words is "thirteen billion, one hundred thirty-five million, two hundred eleven thousand, two hundred ninety-seven".

Divisors: 1 13 101 139 1313 1807 14039 71971 182507 935623 7269071 10003969 94497923 130051597 1010400869 13135211297