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12942472000 = 26531617809
BaseRepresentation
bin11000000110110111…
…00111001101000000
31020101222112200212211
430003123213031000
5203001233101000
65540134031504
7635504124343
oct140333471500
936358480784
1012942472000
115541762857
1226124a8594
1312b34abc73
148aac7245a
1550b38b7ba
hex3036e7340

12942472000 has 56 divisors (see below), whose sum is σ = 32052051720. Its totient is φ = 5176985600.

The previous prime is 12942471967. The next prime is 12942472019. The reversal of 12942472000 is 27424921.

It can be written as a sum of positive squares in 4 ways, for example, as 2016369216 + 10926102784 = 44904^2 + 104528^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 800905 + ... + 816904.

Almost surely, 212942472000 is an apocalyptic number.

12942472000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12942472000 is an abundant number, since it is smaller than the sum of its proper divisors (19109579720).

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

12942472000 is an equidigital number, since it uses as much as digits as its factorization.

12942472000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1617836 (or 1617816 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

Adding to 12942472000 its reverse (27424921), we get a palindrome (12969896921).

The spelling of 12942472000 in words is "twelve billion, nine hundred forty-two million, four hundred seventy-two thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 125 160 200 250 320 400 500 800 1000 1600 2000 4000 8000 1617809 3235618 6471236 8089045 12942472 16178090 25884944 32356180 40445225 51769888 64712360 80890450 103539776 129424720 161780900 202226125 258849440 323561800 404452250 517698880 647123600 808904500 1294247200 1617809000 2588494400 3235618000 6471236000 12942472000