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17010472621 = 101168420521
BaseRepresentation
bin11111101011110011…
…10011011010101101
31121220111012112122111
433311321303122231
5234314140110441
611451533244021
71141351426432
oct176571633255
947814175574
1017010472621
117239a7193a
123368933611
1317b121c11c
14b75247b89
15698595081
hex3f5e736ad

17010472621 has 4 divisors (see below), whose sum is σ = 17178893244. Its totient is φ = 16842052000.

The previous prime is 17010472607. The next prime is 17010472631. The reversal of 17010472621 is 12627401071.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12627401071 = 17401725671.

It can be written as a sum of positive squares in 2 ways, for example, as 8340255625 + 8670216996 = 91325^2 + 93114^2 .

It is a cyclic number.

It is not a de Polignac number, because 17010472621 - 29 = 17010472109 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17010472631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84210160 + ... + 84210361.

It is an arithmetic number, because the mean of its divisors is an integer number (4294723311).

Almost surely, 217010472621 is an apocalyptic number.

It is an amenable number.

17010472621 is a deficient number, since it is larger than the sum of its proper divisors (168420623).

17010472621 is a wasteful number, since it uses less digits than its factorization.

17010472621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168420622.

The product of its (nonzero) digits is 4704, while the sum is 31.

Adding to 17010472621 its reverse (12627401071), we get a palindrome (29637873692).

The spelling of 17010472621 in words is "seventeen billion, ten million, four hundred seventy-two thousand, six hundred twenty-one".

Divisors: 1 101 168420521 17010472621