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28114144223 = 1116743135509
BaseRepresentation
bin11010001011101110…
…111100101111011111
32200120022201111120212
4122023232330233133
5430034210103343
620525423403035
72013460166024
oct321356745737
980508644525
1028114144223
1110a17779740
12554745347b
1328607744c9
141509bc354b
15ae82b1c18
hex68bbbcbdf

28114144223 has 16 divisors (see below), whose sum is σ = 30926085120. Its totient is φ = 25345610400.

The previous prime is 28114144217. The next prime is 28114144243. The reversal of 28114144223 is 32244141182.

It is not a de Polignac number, because 28114144223 - 212 = 28114140127 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28114144223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28114144243) 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, 773993 + ... + 809501.

It is an arithmetic number, because the mean of its divisors is an integer number (1932880320).

Almost surely, 228114144223 is an apocalyptic number.

28114144223 is a deficient number, since it is larger than the sum of its proper divisors (2811940897).

28114144223 is a wasteful number, since it uses less digits than its factorization.

28114144223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36118.

The product of its digits is 12288, while the sum is 32.

The spelling of 28114144223 in words is "twenty-eight billion, one hundred fourteen million, one hundred forty-four thousand, two hundred twenty-three".

Divisors: 1 11 167 431 1837 4741 35509 71977 390599 791747 5930003 15304379 65230033 168348169 2555831293 28114144223