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69865474411213 = 1336208114842721
BaseRepresentation
bin11111110001010110100101…
…10010001100101011001101
3100011101002000000222210110021
433320223102302030223031
533124133442422124323
6404331431133142141
720500420405011205
oct1770532262145315
9304332000883407
1069865474411213
1120296865a09178
127a0449202a951
132cca3943694b0
14133771530d405
158125646dc05d
hex3f8ad2c8cacd

69865474411213 has 8 divisors (see below), whose sum is σ = 75239954540856. Its totient is φ = 64491024691200.

The previous prime is 69865474411193. The next prime is 69865474411223. The reversal of 69865474411213 is 31211447456896.

It can be written as a sum of positive squares in 4 ways, for example, as 8554115766564 + 61311358644649 = 2924742^2 + 7830157^2 .

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-69865474411213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69865474411223) 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, 2714308 + ... + 12128413.

It is an arithmetic number, because the mean of its divisors is an integer number (9404994317607).

Almost surely, 269865474411213 is an apocalyptic number.

It is an amenable number.

69865474411213 is a deficient number, since it is larger than the sum of its proper divisors (5374480129643).

69865474411213 is a wasteful number, since it uses less digits than its factorization.

69865474411213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15204815.

The product of its digits is 34836480, while the sum is 61.

The spelling of 69865474411213 in words is "sixty-nine trillion, eight hundred sixty-five billion, four hundred seventy-four million, four hundred eleven thousand, two hundred thirteen".

Divisors: 1 13 362081 4707053 14842721 192955373 5374267262401 69865474411213