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55054987896690 = 23254357314039017
BaseRepresentation
bin11001000010010011111001…
…11111110010011101110010
321012221012112202200222010100
430201021330333302131302
524204010103400143230
6313031525015213230
714411406631534005
oct1441117477623562
9235835482628110
1055054987896690
11165a6764429271
126212038077216
132494880a38802
14d84965d1153c
1565718ea8b660
hex32127cff2772

55054987896690 has 48 divisors (see below), whose sum is σ = 143146263857688. Its totient is φ = 14680992123648.

The previous prime is 55054987896641. The next prime is 55054987896737. The reversal of 55054987896690 is 9669878945055.

55054987896690 is a `hidden beast` number, since 5 + 5 + 0 + 549 + 8 + 7 + 8 + 9 + 6 + 69 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 25958036579409 + 29096951317281 = 5094903^2 + 5394159^2 .

It is a super-2 number, since 2×550549878966902 (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3097939 + ... + 10941078.

Almost surely, 255054987896690 is an apocalyptic number.

55054987896690 is an abundant number, since it is smaller than the sum of its proper divisors (88091275960998).

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

55054987896690 is a wasteful number, since it uses less digits than its factorization.

55054987896690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14082603 (or 14082600 counting only the distinct ones).

The product of its (nonzero) digits is 5878656000, while the sum is 81.

The spelling of 55054987896690 in words is "fifty-five trillion, fifty-four billion, nine hundred eighty-seven million, eight hundred ninety-six thousand, six hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 43573 87146 130719 217865 261438 392157 435730 653595 784314 1307190 1960785 3921570 14039017 28078034 42117051 70195085 84234102 126351153 140390170 210585255 252702306 421170510 631755765 1263511530 611722087741 1223444175482 1835166263223 3058610438705 3670332526446 5505498789669 6117220877410 9175831316115 11010997579338 18351662632230 27527493948345 55054987896690