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17053755661 = 43355817057
BaseRepresentation
bin11111110000111101…
…11010100100001101
31122000111122112211001
433320132322210031
5234411230140121
611500121100301
71142415350155
oct177036724415
948014575731
1017053755661
117261445048
12337b327691
1317ba1950a7
14b7acb3765
1569c294991
hex3f87ba90d

17053755661 has 8 divisors (see below), whose sum is σ = 17098626104. Its totient is φ = 17008911360.

The previous prime is 17053755659. The next prime is 17053755703. The reversal of 17053755661 is 16655735071.

It can be written as a sum of positive squares in 4 ways, for example, as 3315571561 + 13738184100 = 57581^2 + 117210^2 .

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 17053755661 - 21 = 17053755659 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 (17053755601) 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, 2413045 + ... + 2420101.

It is an arithmetic number, because the mean of its divisors is an integer number (2137328263).

Almost surely, 217053755661 is an apocalyptic number.

It is an amenable number.

17053755661 is a deficient number, since it is larger than the sum of its proper divisors (44870443).

17053755661 is an equidigital number, since it uses as much as digits as its factorization.

17053755661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13071.

The product of its (nonzero) digits is 661500, while the sum is 46.

The spelling of 17053755661 in words is "seventeen billion, fifty-three million, seven hundred fifty-five thousand, six hundred sixty-one".

Divisors: 1 433 5581 7057 2416573 3055681 39385117 17053755661