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17134692649 = 174572205521
BaseRepresentation
bin11111111010100111…
…01010100100101001
31122020010221120111021
433331103222210221
5240042440131044
611512131532441
71144420325104
oct177523524451
948203846437
1017134692649
1172a30a6218
1233a245a121
131800b92ab9
14b8794173b
156a4430e84
hex3fd4ea929

17134692649 has 8 divisors (see below), whose sum is σ = 18182323368. Its totient is φ = 16091473920.

The previous prime is 17134692647. The next prime is 17134692667. The reversal of 17134692649 is 94629643171.

It can be written as a sum of positive squares in 4 ways, for example, as 8275177024 + 8859515625 = 90968^2 + 94125^2 .

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 17134692649 - 21 = 17134692647 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 17134692596 and 17134692605.

It is not an unprimeable number, because it can be changed into a prime (17134692647) 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, 1094992 + ... + 1110529.

It is an arithmetic number, because the mean of its divisors is an integer number (2272790421).

Almost surely, 217134692649 is an apocalyptic number.

It is an amenable number.

17134692649 is a deficient number, since it is larger than the sum of its proper divisors (1047630719).

17134692649 is a wasteful number, since it uses less digits than its factorization.

17134692649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2205995.

The product of its digits is 1959552, while the sum is 52.

The spelling of 17134692649 in words is "seventeen billion, one hundred thirty-four million, six hundred ninety-two thousand, six hundred forty-nine".

Divisors: 1 17 457 7769 2205521 37493857 1007923097 17134692649