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30231131212102 = 21719521571157307
BaseRepresentation
bin1101101111110101110111…
…10101100100100101000110
310222001001211111211212122011
412313322323311210211012
512430301324042241402
6144143553455124434
76240061420312432
oct667727365444506
9128031744755564
1030231131212102
1196a5a50499717
123482bb481371a
1313b3a252b1a92
147672a1c1b9c2
153765ab325ed7
hex1b7ebbd64946

30231131212102 has 64 divisors (see below), whose sum is σ = 50727224021760. Its totient is φ = 13428143539200.

The previous prime is 30231131212091. The next prime is 30231131212127. The reversal of 30231131212102 is 20121213113203.

It is a super-2 number, since 2×302311312121022 (a number of 28 digits) 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 31 ways as a sum of consecutive naturals, for example, 192100533 + ... + 192257839.

It is an arithmetic number, because the mean of its divisors is an integer number (792612875340).

Almost surely, 230231131212102 is an apocalyptic number.

30231131212102 is a deficient number, since it is larger than the sum of its proper divisors (20496092809658).

30231131212102 is a wasteful number, since it uses less digits than its factorization.

30231131212102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158437.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 30231131212102 its reverse (20121213113203), we get a palindrome (50352344325305).

The spelling of 30231131212102 in words is "thirty trillion, two hundred thirty-one billion, one hundred thirty-one million, two hundred twelve thousand, one hundred two".

Divisors: 1 2 17 19 34 38 323 521 571 646 1042 1142 8857 9707 9899 10849 17714 19414 19798 21698 157307 168283 184433 297491 314614 336566 368866 594982 2674219 2988833 5057347 5348438 5652329 5977666 10114694 11304658 50810161 81956947 89822297 96089593 101620322 163913894 179644594 192179186 1393268099 1526979049 1557181993 1706623643 2786536198 3053958098 3114363986 3413247286 26472093881 29012601931 46797416737 52944187762 58025203862 93594833474 795556084529 889150918003 1591112169058 1778301836006 15115565606051 30231131212102