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13808306497 = 971110912823
BaseRepresentation
bin11001101110000101…
…00000100101000001
31022122022202122112011
430313002200211001
5211234411301442
610202103532521
7666116445226
oct146702404501
938568678464
1013808306497
11594647a057
12281445a141
1313c09a267b
1494dc5794d
1555c3ba117
hex3370a0941

13808306497 has 8 divisors (see below), whose sum is σ = 13836070080. Its totient is φ = 13780572720.

The previous prime is 13808306489. The next prime is 13808306507. The reversal of 13808306497 is 79460380831.

It is a happy number.

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 13808306497 - 23 = 13808306489 is a prime.

It is a super-2 number, since 2×138083064972 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13808306497.

It is not an unprimeable number, because it can be changed into a prime (13808306417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1070428 + ... + 1083250.

It is an arithmetic number, because the mean of its divisors is an integer number (1729508760).

Almost surely, 213808306497 is an apocalyptic number.

It is an amenable number.

13808306497 is a deficient number, since it is larger than the sum of its proper divisors (27763583).

13808306497 is a wasteful number, since it uses less digits than its factorization.

13808306497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14903.

The product of its (nonzero) digits is 870912, while the sum is 49.

The spelling of 13808306497 in words is "thirteen billion, eight hundred eight million, three hundred six thousand, four hundred ninety-seven".

Divisors: 1 971 1109 12823 1076839 12451133 14220707 13808306497