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2144001200 = 245211716863
BaseRepresentation
bin111111111001010…
…1101110010110000
312112102022112201212
41333302231302300
513342331014300
6552425215252
7104062465235
oct17762556260
95472275655
102144001200
11a00261920
124ba031528
13282255983
14164a6178c
15c8359935
hex7fcadcb0

2144001200 has 120 divisors (see below), whose sum is σ = 5699206656. Its totient is φ = 768544000.

The previous prime is 2144001187. The next prime is 2144001217. The reversal of 2144001200 is 21004412.

It is a super-2 number, since 2×21440012002 = 9193482291202880000, which contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 308969 + ... + 315831.

Almost surely, 22144001200 is an apocalyptic number.

2144001200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2144001200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2849603328).

2144001200 is an abundant number, since it is smaller than the sum of its proper divisors (3555205456).

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

2144001200 is a wasteful number, since it uses less digits than its factorization.

2144001200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6963 (or 6952 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 2144001200 is about 46303.3605691855. The cubic root of 2144001200 is about 1289.4613860244.

Adding to 2144001200 its reverse (21004412), we get a palindrome (2165005612).

The spelling of 2144001200 in words is "two billion, one hundred forty-four million, one thousand, two hundred".

Divisors: 1 2 4 5 8 10 11 16 20 22 25 40 44 50 55 71 80 88 100 110 142 176 200 220 275 284 355 400 440 550 568 710 781 880 1100 1136 1420 1562 1775 2200 2840 3124 3550 3905 4400 5680 6248 6863 7100 7810 12496 13726 14200 15620 19525 27452 28400 31240 34315 39050 54904 62480 68630 75493 78100 109808 137260 150986 156200 171575 274520 301972 312400 343150 377465 487273 549040 603944 686300 754930 974546 1207888 1372600 1509860 1887325 1949092 2436365 2745200 3019720 3774650 3898184 4872730 5360003 6039440 7549300 7796368 9745460 10720006 12181825 15098600 19490920 21440012 24363650 26800015 30197200 38981840 42880024 48727300 53600030 85760048 97454600 107200060 134000075 194909200 214400120 268000150 428800240 536000300 1072000600 2144001200