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261430542002013 = 3175126089058863
BaseRepresentation
bin111011011100010100001010…
…100101101110011101011101
31021021122111220222011211101020
4323130110022211232131131
5233231234222223031023
62324003311043434353
7106031506353663036
oct7334241245563535
91237574828154336
10261430542002013
117633308553091a
12253a2ba76859b9
13b2b4a431a9277
14487b43cd7ba8d
15203561d28dde3
hexedc50a96e75d

261430542002013 has 8 divisors (see below), whose sum is σ = 369078412238208. Its totient is φ = 164034849883584.

The previous prime is 261430542001969. The next prime is 261430542002087. The reversal of 261430542002013 is 310200245034162.

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

It is not a de Polignac number, because 261430542002013 - 217 = 261430541870941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261430542004013) 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, 2563044529381 + ... + 2563044529482.

It is an arithmetic number, because the mean of its divisors is an integer number (46134801529776).

Almost surely, 2261430542002013 is an apocalyptic number.

It is an amenable number.

261430542002013 is a deficient number, since it is larger than the sum of its proper divisors (107647870236195).

261430542002013 is a wasteful number, since it uses less digits than its factorization.

261430542002013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5126089058883.

The product of its (nonzero) digits is 34560, while the sum is 33.

Adding to 261430542002013 its reverse (310200245034162), we get a palindrome (571630787036175).

The spelling of 261430542002013 in words is "two hundred sixty-one trillion, four hundred thirty billion, five hundred forty-two million, two thousand, thirteen".

Divisors: 1 3 17 51 5126089058863 15378267176589 87143514000671 261430542002013