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12131313020984 = 239679156670537
BaseRepresentation
bin1011000010001000101010…
…0110100111000000111000
31120221202001001200201121002
42300202022212213000320
53042224412113132414
641445014231504132
72361313150201253
oct260421246470070
946852031621532
1012131313020984
113957951a35043
12143b168228048
1369cc9360acc1
142dd2315d809a
1516086b1974de
hexb088a9a7038

12131313020984 has 16 divisors (see below), whose sum is σ = 22748562117600. Its totient is φ = 6065029789632.

The previous prime is 12131313020971. The next prime is 12131313021001. The reversal of 12131313020984 is 48902031313121.

It is a super-2 number, since 2×121313130209842 (a number of 27 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 3 ways as a sum of consecutive naturals, for example, 78257837 + ... + 78412700.

It is an arithmetic number, because the mean of its divisors is an integer number (1421785132350).

Almost surely, 212131313020984 is an apocalyptic number.

It is an amenable number.

12131313020984 is a deficient number, since it is larger than the sum of its proper divisors (10617249096616).

12131313020984 is a wasteful number, since it uses less digits than its factorization.

12131313020984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156680222 (or 156680218 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The spelling of 12131313020984 in words is "twelve trillion, one hundred thirty-one billion, three hundred thirteen million, twenty thousand, nine hundred eighty-four".

Divisors: 1 2 4 8 9679 19358 38716 77432 156670537 313341074 626682148 1253364296 1516414127623 3032828255246 6065656510492 12131313020984