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2112164910 = 23458389353
BaseRepresentation
bin111110111100101…
…0001010000101110
312110012102002120000
41331321101100232
513311203234120
6545331005130
7103225051122
oct17571212056
95405362500
102112164910
11994297839
124ab4397a6
13278789c2b
14160735582
15c566b990
hex7de5142e

2112164910 has 160 divisors (see below), whose sum is σ = 5828850720. Its totient is φ = 548646912.

The previous prime is 2112164893. The next prime is 2112164927. The reversal of 2112164910 is 194612112.

2112164910 is a `hidden beast` number, since 2 + 1 + 1 + 2 + 1 + 649 + 10 = 666.

It is an interprime number because it is at equal distance from previous prime (2112164893) and next prime (2112164927).

It is a super-2 number, since 2×21121649102 = 8922481214070616200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 5983294 + ... + 5983646.

It is an arithmetic number, because the mean of its divisors is an integer number (36430317).

Almost surely, 22112164910 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2112164910, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2914425360).

2112164910 is an abundant number, since it is smaller than the sum of its proper divisors (3716685810).

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

2112164910 is a wasteful number, since it uses less digits than its factorization.

2112164910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544 (or 535 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 2112164910 is about 45958.2953339220. The cubic root of 2112164910 is about 1283.0471247205.

The spelling of 2112164910 in words is "two billion, one hundred twelve million, one hundred sixty-four thousand, nine hundred ten".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 81 83 89 90 135 162 166 178 249 267 270 353 405 415 445 498 534 706 747 801 810 830 890 1059 1245 1335 1494 1602 1765 2118 2241 2403 2490 2670 3177 3530 3735 4005 4482 4806 5295 6354 6723 7209 7387 7470 8010 9531 10590 11205 12015 13446 14418 14774 15885 19062 22161 22410 24030 28593 29299 31417 31770 33615 36045 36935 44322 47655 57186 58598 62834 66483 67230 72090 73870 87897 94251 95310 110805 132966 142965 146495 157085 175794 188502 199449 221610 263691 282753 285930 292990 314170 332415 398898 439485 471255 527382 565506 598347 664830 791073 848259 878970 942510 997245 1196694 1318455 1413765 1582146 1696518 1994490 2373219 2544777 2607611 2636910 2827530 2991735 3955365 4241295 4746438 5089554 5215222 5983470 7822833 7910730 8482590 11866095 12723885 13038055 15645666 23468499 23732190 25447770 26076110 39114165 46936998 70405497 78228330 117342495 140810994 211216491 234684990 352027485 422432982 704054970 1056082455 2112164910