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17218152013 = 19906218527
BaseRepresentation
bin10000000010010010…
…000010011001001101
31122102221222202012211
4100002102002121031
5240230321331023
611524312430421
71146452606626
oct200222023115
948387882184
1017218152013
11733621a4a7
1234063a8411
13181526493a
14b94a68a4d
156ab919a0d
hex40248264d

17218152013 has 4 divisors (see below), whose sum is σ = 18124370560. Its totient is φ = 16311933468.

The previous prime is 17218151957. The next prime is 17218152031. The reversal of 17218152013 is 31025181271.

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 17218152013 - 213 = 17218143821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17218152043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 453109245 + ... + 453109282.

It is an arithmetic number, because the mean of its divisors is an integer number (4531092640).

Almost surely, 217218152013 is an apocalyptic number.

It is an amenable number.

17218152013 is a deficient number, since it is larger than the sum of its proper divisors (906218547).

17218152013 is an equidigital number, since it uses as much as digits as its factorization.

17218152013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906218546.

The product of its (nonzero) digits is 3360, while the sum is 31.

The spelling of 17218152013 in words is "seventeen billion, two hundred eighteen million, one hundred fifty-two thousand, thirteen".

Divisors: 1 19 906218527 17218152013