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31122201010230 = 2345113492951853
BaseRepresentation
bin1110001001110001100111…
…01111000110000000110110
311002012020211200212200220000
413010320303233012000312
513034401231424311410
6150105201453252130
76361335103525131
oct704706357060066
9132166750780800
1031122201010230
119a09940130690
1235a7836194046
131449a708b8565
1479847319b218
1538e85e861dc0
hex1c4e33bc6036

31122201010230 has 80 divisors (see below), whose sum is σ = 91291789656144. Its totient is φ = 7544776000320.

The previous prime is 31122201010223. The next prime is 31122201010259. The reversal of 31122201010230 is 3201010222113.

31122201010230 is a `hidden beast` number, since 3 + 112 + 220 + 101 + 0 + 230 = 666.

It is a super-2 number, since 2×311222010102302 (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1746467017 + ... + 1746484836.

Almost surely, 231122201010230 is an apocalyptic number.

31122201010230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31122201010230 is an abundant number, since it is smaller than the sum of its proper divisors (60169588645914).

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

31122201010230 is a wasteful number, since it uses less digits than its factorization.

31122201010230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3492951883 (or 3492951874 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 31122201010230 its reverse (3201010222113), we get a palindrome (34323211232343).

The spelling of 31122201010230 in words is "thirty-one trillion, one hundred twenty-two billion, two hundred one million, ten thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 11 15 18 22 27 30 33 45 54 55 66 81 90 99 110 135 162 165 198 270 297 330 405 495 594 810 891 990 1485 1782 2970 4455 8910 3492951853 6985903706 10478855559 17464759265 20957711118 31436566677 34929518530 38422470383 52394277795 62873133354 76844940766 94309700031 104788555590 115267411149 157182833385 188619400062 192112351915 230534822298 282929100093 314365666770 345802233447 384224703830 471548500155 565858200186 576337055745 691604466894 943097000310 1037406700341 1152674111490 1414645500465 1729011167235 2074813400682 2829291000930 3112220101023 3458022334470 5187033501705 6224440202046 10374067003410 15561100505115 31122201010230