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2144221310 = 2571147179331
BaseRepresentation
bin111111111001110…
…0011100001111110
312112102201201200002
41333303203201332
513342410040220
6552434034302
7104064403040
oct17763434176
95472651602
102144221310
11a003a2230
124ba118992
13282301c0a
14164abba90
15c839ec75
hex7fce387e

2144221310 has 128 divisors (see below), whose sum is σ = 4956733440. Its totient is φ = 648489600.

The previous prime is 2144221297. The next prime is 2144221351. The reversal of 2144221310 is 131224412.

It is a super-2 number, since 2×21442213102 = 9195370052516232200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6477845 + ... + 6478175.

It is an arithmetic number, because the mean of its divisors is an integer number (38724480).

Almost surely, 22144221310 is an apocalyptic number.

2144221310 is an abundant number, since it is smaller than the sum of its proper divisors (2812512130).

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

2144221310 is a wasteful number, since it uses less digits than its factorization.

2144221310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 2144221310 is about 46305.7373335098. The cubic root of 2144221310 is about 1289.5055112537.

Adding to 2144221310 its reverse (131224412), we get a palindrome (2275445722).

The spelling of 2144221310 in words is "two billion, one hundred forty-four million, two hundred twenty-one thousand, three hundred ten".

Divisors: 1 2 5 7 10 11 14 22 35 47 55 70 77 94 110 154 179 235 329 331 358 385 470 517 658 662 770 895 1034 1253 1645 1655 1790 1969 2317 2506 2585 3290 3310 3619 3641 3938 4634 5170 6265 7238 7282 8413 9845 11585 12530 13783 15557 16826 18095 18205 19690 23170 25487 27566 31114 36190 36410 42065 50974 58891 59249 68915 77785 84130 92543 108899 117782 118498 127435 137830 155570 171127 185086 217798 254870 294455 296245 342254 414743 462715 544495 588910 592490 647801 651739 829486 855635 925430 1088990 1197889 1295602 1303478 1711270 2073715 2395778 2784703 3239005 3258695 4147430 4562173 5569406 5989445 6478010 6517390 9124346 11978890 13923515 19492921 22810865 27847030 30631733 38985842 45621730 61263466 97464605 153158665 194929210 214422131 306317330 428844262 1072110655 2144221310