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16809127480 = 2351921164067
BaseRepresentation
bin11111010011110011…
…01110111000111000
31121101110100011001001
433221321232320320
5233411114034410
611415541534344
71133355140365
oct175171567070
947343304031
1016809127480
1171463502a2
1233114143b4
13177b5b37a2
14b565d546c
15685a7233a
hex3e9e6ee38

16809127480 has 48 divisors (see below), whose sum is σ = 39915891720. Its totient is φ = 6369769152.

The previous prime is 16809127459. The next prime is 16809127501. The reversal of 16809127480 is 8472190861.

It is an interprime number because it is at equal distance from previous prime (16809127459) and next prime (16809127501).

It is a self number, because there is not a number n which added to its sum of digits gives 16809127480.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 567594 + ... + 596473.

Almost surely, 216809127480 is an apocalyptic number.

16809127480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16809127480 is an abundant number, since it is smaller than the sum of its proper divisors (23106764240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16809127480 is a wasteful number, since it uses less digits than its factorization.

16809127480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1164116 (or 1164093 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 46.

The spelling of 16809127480 in words is "sixteen billion, eight hundred nine million, one hundred twenty-seven thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 19 20 38 40 76 95 152 190 361 380 722 760 1444 1805 2888 3610 7220 14440 1164067 2328134 4656268 5820335 9312536 11640670 22117273 23281340 44234546 46562680 88469092 110586365 176938184 221172730 420228187 442345460 840456374 884690920 1680912748 2101140935 3361825496 4202281870 8404563740 16809127480