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13208669909 = 67523376949
BaseRepresentation
bin11000100110100110…
…00100111011010101
31021002112102221202122
430103103010323111
5204022404414114
610022403345325
7645215561501
oct142323047325
937075387678
1013208669909
115668a4a226
122687682245
1313266a3316
148d4367301
1552491ee8e
hex3134c4ed5

13208669909 has 8 divisors (see below), whose sum is σ = 13431482400. Its totient is φ = 12986612496.

The previous prime is 13208669833. The next prime is 13208669927. The reversal of 13208669909 is 90996680231.

13208669909 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13208669909 - 232 = 8913702613 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 (13208669959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153434 + ... + 223515.

It is an arithmetic number, because the mean of its divisors is an integer number (1678935300).

Almost surely, 213208669909 is an apocalyptic number.

It is an amenable number.

13208669909 is a deficient number, since it is larger than the sum of its proper divisors (222812491).

13208669909 is an equidigital number, since it uses as much as digits as its factorization.

13208669909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377539.

The product of its (nonzero) digits is 1259712, while the sum is 53.

The spelling of 13208669909 in words is "thirteen billion, two hundred eight million, six hundred sixty-nine thousand, nine hundred nine".

Divisors: 1 67 523 35041 376949 25255583 197144327 13208669909