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2144105020 = 225254342157
BaseRepresentation
bin111111111001100…
…0111001000111100
312112102111211011001
41333303013020330
513342342330040
6552431340044
7104063410021
oct17763071074
95472454131
102144105020
11a00322922
124ba081624
13282290cc5
14164a8b548
15c837a59a
hex7fcc723c

2144105020 has 24 divisors (see below), whose sum is σ = 4504497984. Its totient is φ = 857284416.

The previous prime is 2144104981. The next prime is 2144105039. The reversal of 2144105020 is 205014412.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29782 + ... + 71938.

It is an arithmetic number, because the mean of its divisors is an integer number (187687416).

Almost surely, 22144105020 is an apocalyptic number.

2144105020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2144105020 is an abundant number, since it is smaller than the sum of its proper divisors (2360392964).

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

2144105020 is a wasteful number, since it uses less digits than its factorization.

2144105020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44709 (or 44707 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 2144105020 is about 46304.4816405497. The cubic root of 2144105020 is about 1289.4821990912.

Adding to 2144105020 its reverse (205014412), we get a palindrome (2349119432).

The spelling of 2144105020 in words is "two billion, one hundred forty-four million, one hundred five thousand, twenty".

Divisors: 1 2 4 5 10 20 2543 5086 10172 12715 25430 42157 50860 84314 168628 210785 421570 843140 107205251 214410502 428821004 536026255 1072052510 2144105020