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2129190486912 = 27322779916733
BaseRepresentation
bin11110111110111101101…
…001001000001110000000
321112112210221112120101200
4132332331221020032000
5234341040231040122
64310045301301200
7306554216344656
oct36767551101600
97475727476350
102129190486912
11750a91581835
122a4799704800
13125a21804c78
14750a6634dd6
153a5b9c3a5ac
hex1efbda48380

2129190486912 has 192 divisors, whose sum is σ = 6156205560960. Its totient is φ = 706349445120.

The previous prime is 2129190486887. The next prime is 2129190486947. The reversal of 2129190486912 is 2196840919212.

It is a tau number, because it is divible by the number of its divisors (192).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 316228698 + ... + 316235430.

It is an arithmetic number, because the mean of its divisors is an integer number (32063570630).

Almost surely, 22129190486912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2129190486912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3078102780480).

2129190486912 is an abundant number, since it is smaller than the sum of its proper divisors (4027015074048).

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

2129190486912 is a wasteful number, since it uses less digits than its factorization.

2129190486912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8021 (or 8006 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 54.

The spelling of 2129190486912 in words is "two trillion, one hundred twenty-nine billion, one hundred ninety million, four hundred eighty-six thousand, nine hundred twelve".