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212231331130 = 257134124123603
BaseRepresentation
bin1100010110100111111…
…0010001110100111010
3202021210202200200111111
43011221332101310322
511434122210044010
6241255301550534
721222201356350
oct3055176216472
9667722620444
10212231331130
1182009065325
123516ba1544a
131702338ab10
14a3b47197d0
1557c218c58a
hex3169f91d3a

212231331130 has 128 divisors (see below), whose sum is σ = 483660688896. Its totient is φ = 65254809600.

The previous prime is 212231331113. The next prime is 212231331131. The reversal of 212231331130 is 31133132212.

212231331130 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (212231331131) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8979909 + ... + 9003511.

It is an arithmetic number, because the mean of its divisors is an integer number (3778599132).

Almost surely, 2212231331130 is an apocalyptic number.

212231331130 is an abundant number, since it is smaller than the sum of its proper divisors (271429357766).

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

212231331130 is a wasteful number, since it uses less digits than its factorization.

212231331130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23912.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 212231331130 its reverse (31133132212), we get a palindrome (243364463342).

The spelling of 212231331130 in words is "two hundred twelve billion, two hundred thirty-one million, three hundred thirty-one thousand, one hundred thirty".

Divisors: 1 2 5 7 10 13 14 26 35 41 65 70 82 91 130 182 205 241 287 410 455 482 533 574 910 1066 1205 1435 1687 2410 2665 2870 3133 3374 3731 5330 6266 7462 8435 9881 15665 16870 18655 19762 21931 23603 31330 37310 43862 47206 49405 69167 98810 109655 118015 128453 138334 165221 219310 236030 256906 306839 330442 345835 613678 642265 691670 826105 899171 967723 1284530 1534195 1652210 1798342 1935446 2147873 3068390 4295746 4495855 4838615 5688323 6774061 8991710 9677230 10739365 11376646 12580399 13548122 21478730 25160798 28441615 33870305 39818261 56883230 62901995 67740610 73948199 79636522 88062793 125803990 147896398 176125586 199091305 233221243 369740995 398182610 440313965 466442486 517637393 739481990 880627930 1035274786 1166106215 1632548701 2332212430 2588186965 3031876159 3265097402 5176373930 6063752318 8162743505 15159380795 16325487010 21223133113 30318761590 42446266226 106115665565 212231331130