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2143233144 = 2332132289779
BaseRepresentation
bin111111110111111…
…0010010001111000
312112100212112011100
41333233302101320
513342131430034
6552400531400
7104053116063
oct17757622170
95470775140
102143233144
119aa887868
124b9920b60
132820471c0
141649018da
15c8257099
hex7fbf2478

2143233144 has 48 divisors (see below), whose sum is σ = 6251099400. Its totient is φ = 659456064.

The previous prime is 2143233137. The next prime is 2143233199. The reversal of 2143233144 is 4413323412.

2143233144 is a `hidden beast` number, since 21 + 4 + 323 + 314 + 4 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1143954 + ... + 1145825.

Almost surely, 22143233144 is an apocalyptic number.

2143233144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2143233144 is an abundant number, since it is smaller than the sum of its proper divisors (4107866256).

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

2143233144 is a wasteful number, since it uses less digits than its factorization.

2143233144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2289804 (or 2289797 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

The square root of 2143233144 is about 46295.0660870033. The cubic root of 2143233144 is about 1289.3073909551.

Adding to 2143233144 its reverse (4413323412), we get a palindrome (6556556556).

The spelling of 2143233144 in words is "two billion, one hundred forty-three million, two hundred thirty-three thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 9 12 13 18 24 26 36 39 52 72 78 104 117 156 234 312 468 936 2289779 4579558 6869337 9159116 13738674 18318232 20608011 27477348 29767127 41216022 54954696 59534254 82432044 89301381 119068508 164864088 178602762 238137016 267904143 357205524 535808286 714411048 1071616572 2143233144