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31100002130012 = 2261587811267739
BaseRepresentation
bin1110001001001000010001…
…00101000101100001011100
311002010010112121202202001012
413010210020211011201130
513034020301021130022
6150051051014234352
76356621021254544
oct704441045054134
9132103477682035
1031100002130012
119a00489477392
1235a347b9559b8
1314479437b1b8a
14797368c4a324
1538deb0a4ade2
hex1c490894585c

31100002130012 has 48 divisors (see below), whose sum is σ = 55479986136960. Its totient is φ = 15250142289600.

The previous prime is 31100002129967. The next prime is 31100002130077. The reversal of 31100002130012 is 21003120000113.

It is a super-2 number, since 2×311000021300122 (a number of 28 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 116024039 + ... + 116291777.

It is an arithmetic number, because the mean of its divisors is an integer number (1155833044520).

Almost surely, 231100002130012 is an apocalyptic number.

It is an amenable number.

31100002130012 is a deficient number, since it is larger than the sum of its proper divisors (24379984006948).

31100002130012 is a wasteful number, since it uses less digits than its factorization.

31100002130012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269202 (or 269200 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 31100002130012 its reverse (21003120000113), we get a palindrome (52103122130125).

The spelling of 31100002130012 in words is "thirty-one trillion, one hundred billion, two million, one hundred thirty thousand, twelve".

Divisors: 1 2 4 61 122 244 587 811 1174 1622 2348 3244 35807 49471 71614 98942 143228 197884 267739 476057 535478 952114 1070956 1904228 16332079 29039477 32664158 58078954 65328316 116157908 157162793 217136329 314325586 434272658 628651172 868545316 9586930373 13245316069 19173860746 26490632138 38347721492 52981264276 127459025123 254918050246 509836100492 7775000532503 15550001065006 31100002130012