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2144021383 = 723102113043
BaseRepresentation
bin111111111001011…
…0010101110000111
312112102100120102101
41333302302232013
513342332141013
6552425452531
7104062611130
oct17762625607
95472316371
102144021383
11a00275aa9
124ba041147
13282261c0a
14164a68c87
15c83608dd
hex7fcb2b87

2144021383 has 16 divisors (see below), whose sum is σ = 2559545856. Its totient is φ = 1755974880.

The previous prime is 2144021377. The next prime is 2144021393. The reversal of 2144021383 is 3831204412.

It is a cyclic number.

It is not a de Polignac number, because 2144021383 - 225 = 2110466951 is a prime.

It is a super-2 number, since 2×21440213832 = 9193655381522465378, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144021333) 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, 157860 + ... + 170902.

It is an arithmetic number, because the mean of its divisors is an integer number (159971616).

Almost surely, 22144021383 is an apocalyptic number.

2144021383 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2144021383 is a deficient number, since it is larger than the sum of its proper divisors (415524473).

2144021383 is a wasteful number, since it uses less digits than its factorization.

2144021383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14094.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 2144021383 is about 46303.5785118170. The cubic root of 2144021383 is about 1289.4654322158.

Adding to 2144021383 its reverse (3831204412), we get a palindrome (5975225795).

The spelling of 2144021383 in words is "two billion, one hundred forty-four million, twenty-one thousand, three hundred eighty-three".

Divisors: 1 7 23 161 1021 7147 13043 23483 91301 164381 299989 2099923 13316903 93218321 306288769 2144021383