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1228113683916 = 2237139105182741
BaseRepresentation
bin10001110111110001010…
…001111010010111001100
311100101222100120020010220
4101313301101322113030
5130110134100341131
62340104310231340
7154504542034050
oct21676121722714
94311870506126
101228113683916
11433927180a09
1217a024955550
138ba6cc2a832
144362622bc60
1521e2ce0ae96
hex11df147a5cc

1228113683916 has 48 divisors (see below), whose sum is σ = 3298530789120. Its totient is φ = 348365234880.

The previous prime is 1228113683893. The next prime is 1228113683917. The reversal of 1228113683916 is 6193863118221.

It is not an unprimeable number, because it can be changed into a prime (1228113683917) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52579695 + ... + 52603046.

It is an arithmetic number, because the mean of its divisors is an integer number (68719391440).

Almost surely, 21228113683916 is an apocalyptic number.

It is an amenable number.

1228113683916 is an abundant number, since it is smaller than the sum of its proper divisors (2070417105204).

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

1228113683916 is a wasteful number, since it uses less digits than its factorization.

1228113683916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105182894 (or 105182892 counting only the distinct ones).

The product of its digits is 746496, while the sum is 51.

The spelling of 1228113683916 in words is "one trillion, two hundred twenty-eight billion, one hundred thirteen million, six hundred eighty-three thousand, nine hundred sixteen".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 139 278 417 556 834 973 1668 1946 2919 3892 5838 11676 105182741 210365482 315548223 420730964 631096446 736279187 1262192892 1472558374 2208837561 2945116748 4417675122 8835350244 14620400999 29240801998 43861202997 58481603996 87722405994 102342806993 175444811988 204685613986 307028420979 409371227972 614056841958 1228113683916