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1228214426811 = 31989242108107
BaseRepresentation
bin10001110111110111010…
…010001101110010111011
311100102020101010111102020
4101313313102031302323
5130110340343124221
62340122305405523
7154510204242111
oct21676722156273
94312211114366
101228214426811
1143397902a5a9
1217a0526398a3
138ba87a71508
1443635773ab1
1521e36baaac6
hex11df748dcbb

1228214426811 has 16 divisors (see below), whose sum is σ = 1743178377600. Its totient is φ = 766998479808.

The previous prime is 1228214426797. The next prime is 1228214426827. The reversal of 1228214426811 is 1186244128221.

It is not a de Polignac number, because 1228214426811 - 210 = 1228214425787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1228214426861) 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, 121048981 + ... + 121059126.

It is an arithmetic number, because the mean of its divisors is an integer number (108948648600).

Almost surely, 21228214426811 is an apocalyptic number.

1228214426811 is a deficient number, since it is larger than the sum of its proper divisors (514963950789).

1228214426811 is a wasteful number, since it uses less digits than its factorization.

1228214426811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242108218.

The product of its digits is 98304, while the sum is 42.

The spelling of 1228214426811 in words is "one trillion, two hundred twenty-eight billion, two hundred fourteen million, four hundred twenty-six thousand, eight hundred eleven".

Divisors: 1 3 19 57 89 267 1691 5073 242108107 726324321 4600054033 13800162099 21547621523 64642864569 409404808937 1228214426811