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51316412660201 = 136469610205033
BaseRepresentation
bin10111010101100000010001…
…00011000011100111101001
320201200210122000211020112202
423222300020203003213221
523211232003120111301
6301050233505145545
713544326354414013
oct1352601043034751
9221623560736482
1051316412660201
1115395194148867
12590956a92b2b5
132283169c28570
14c95a288631b3
155decce8e066b
hex2eac088c39e9

51316412660201 has 8 divisors (see below), whose sum is σ = 55272371979720. Its totient is φ = 47361673763712.

The previous prime is 51316412660179. The next prime is 51316412660209. The reversal of 51316412660201 is 10206621461315.

It can be written as a sum of positive squares in 4 ways, for example, as 3904374450601 + 47412038209600 = 1975949^2 + 6885640^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 51316412660201 - 234 = 51299232791017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51316412660209) 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, 305018420 + ... + 305186613.

It is an arithmetic number, because the mean of its divisors is an integer number (6909046497465).

Almost surely, 251316412660201 is an apocalyptic number.

It is an amenable number.

51316412660201 is a deficient number, since it is larger than the sum of its proper divisors (3955959319519).

51316412660201 is a wasteful number, since it uses less digits than its factorization.

51316412660201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610211515.

The product of its (nonzero) digits is 51840, while the sum is 38.

The spelling of 51316412660201 in words is "fifty-one trillion, three hundred sixteen billion, four hundred twelve million, six hundred sixty thousand, two hundred one".

Divisors: 1 13 6469 84097 610205033 7932665429 3947416358477 51316412660201