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2142204788612 = 22776507313879
BaseRepresentation
bin11111001011000101010…
…110101111111110000100
321120210101221020121002202
4133023011112233332010
5240044213411213422
64320040523054032
7310524555156350
oct37130526577604
97523357217082
102142204788612
1175655a835279
122a7210071318
13127016b434c5
147597cc44460
153aacc564b92
hex1f2c55aff84

2142204788612 has 12 divisors (see below), whose sum is σ = 4284409577280. Its totient is φ = 918087766536.

The previous prime is 2142204788599. The next prime is 2142204788623. The reversal of 2142204788612 is 2168874022412.

It is a happy number.

2142204788612 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38253656912 + ... + 38253656967.

It is an arithmetic number, because the mean of its divisors is an integer number (357034131440).

Almost surely, 22142204788612 is an apocalyptic number.

It is an amenable number.

2142204788612 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2142204788612 is a wasteful number, since it uses less digits than its factorization.

2142204788612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76507313890 (or 76507313888 counting only the distinct ones).

The product of its (nonzero) digits is 688128, while the sum is 47.

The spelling of 2142204788612 in words is "two trillion, one hundred forty-two billion, two hundred four million, seven hundred eighty-eight thousand, six hundred twelve".

Divisors: 1 2 4 7 14 28 76507313879 153014627758 306029255516 535551197153 1071102394306 2142204788612