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17130912081 = 35710304027
BaseRepresentation
bin11111111010001010…
…01111100101010001
31122012212211111112020
433331011033211101
5240041003141311
611511514522053
71144343231043
oct177505174521
948185744466
1017130912081
1172a0a53888
1233a1136329
13180016b08a
14b87239a93
156a3e35c06
hex3fd14f951

17130912081 has 4 divisors (see below), whose sum is σ = 22841216112. Its totient is φ = 11420608052.

The previous prime is 17130912067. The next prime is 17130912101. The reversal of 17130912081 is 18021903171.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 17130912081 - 29 = 17130911569 is a prime.

It is a super-2 number, since 2×171309120812 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (17130912011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2855152011 + ... + 2855152016.

It is an arithmetic number, because the mean of its divisors is an integer number (5710304028).

Almost surely, 217130912081 is an apocalyptic number.

It is an amenable number.

17130912081 is a deficient number, since it is larger than the sum of its proper divisors (5710304031).

17130912081 is an equidigital number, since it uses as much as digits as its factorization.

17130912081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5710304030.

The product of its (nonzero) digits is 3024, while the sum is 33.

The spelling of 17130912081 in words is "seventeen billion, one hundred thirty million, nine hundred twelve thousand, eighty-one".

Divisors: 1 3 5710304027 17130912081