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17138829019 = 131318371463
BaseRepresentation
bin11111111011000110…
…11100011011011011
31122020102201201112011
433331203130123123
5240100020012034
611512400330351
71144500433354
oct177543343333
948212651464
1017138829019
1172a5470a04
1233a39139b7
1318019b0760
14b882dad2b
156a499b864
hex3fd8dc6db

17138829019 has 4 divisors (see below), whose sum is σ = 18457200496. Its totient is φ = 15820457544.

The previous prime is 17138828969. The next prime is 17138829041. The reversal of 17138829019 is 91092883171.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91092883171 = 613148601767.

It is a cyclic number.

It is not a de Polignac number, because 17138829019 - 227 = 17004611291 is a prime.

It is a super-2 number, since 2×171388290192 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (17138829919) 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, 659185719 + ... + 659185744.

It is an arithmetic number, because the mean of its divisors is an integer number (4614300124).

Almost surely, 217138829019 is an apocalyptic number.

17138829019 is a deficient number, since it is larger than the sum of its proper divisors (1318371477).

17138829019 is a wasteful number, since it uses less digits than its factorization.

17138829019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1318371476.

The product of its (nonzero) digits is 217728, while the sum is 49.

The spelling of 17138829019 in words is "seventeen billion, one hundred thirty-eight million, eight hundred twenty-nine thousand, nineteen".

Divisors: 1 13 1318371463 17138829019