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16628055492 = 2231429969679
BaseRepresentation
bin11110111110001101…
…11111110111000100
31120220211121201222010
433133012333313010
5233023240233432
611345552534220
71126026065616
oct173706776704
946824551863
1016628055492
117063116224
123280851370
13174cc259b9
14b3a53cdb6
15674c063cc
hex3df1bfdc4

16628055492 has 24 divisors (see below), whose sum is σ = 38825987200. Its totient is φ = 5538800736.

The previous prime is 16628055463. The next prime is 16628055503. The reversal of 16628055492 is 29455082661.

It is a super-3 number, since 3×166280554923 (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 467692 + ... + 501987.

Almost surely, 216628055492 is an apocalyptic number.

16628055492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16628055492 is an abundant number, since it is smaller than the sum of its proper divisors (22197931708).

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

16628055492 is a wasteful number, since it uses less digits than its factorization.

16628055492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971115 (or 971113 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 48.

The spelling of 16628055492 in words is "sixteen billion, six hundred twenty-eight million, fifty-five thousand, four hundred ninety-two".

Divisors: 1 2 3 4 6 12 1429 2858 4287 5716 8574 17148 969679 1939358 2909037 3878716 5818074 11636148 1385671291 2771342582 4157013873 5542685164 8314027746 16628055492