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84788054 = 21329139809
BaseRepresentation
bin1010000110111…
…00001101010110
312220112200100022
411003130031112
5133201204204
612225145142
72046454331
oct503341526
9186480308
1084788054
114395157a
122448b1b2
1314748860
14b391618
15769c5be
hex50dc356

84788054 has 32 divisors (see below), whose sum is σ = 142884000. Its totient is φ = 37465344.

The previous prime is 84788023. The next prime is 84788057. The reversal of 84788054 is 45088748.

It is a super-2 number, since 2×847880542 = 14378028202213832, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 84787996 and 84788014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84788057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104402 + ... + 105210.

It is an arithmetic number, because the mean of its divisors is an integer number (4465125).

Almost surely, 284788054 is an apocalyptic number.

84788054 is a deficient number, since it is larger than the sum of its proper divisors (58095946).

84788054 is a wasteful number, since it uses less digits than its factorization.

84788054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 992.

The product of its (nonzero) digits is 286720, while the sum is 44.

The square root of 84788054 is about 9208.0428973805. The cubic root of 84788054 is about 439.3172158091.

The spelling of 84788054 in words is "eighty-four million, seven hundred eighty-eight thousand, fifty-four".

Divisors: 1 2 13 26 29 58 139 278 377 754 809 1618 1807 3614 4031 8062 10517 21034 23461 46922 52403 104806 112451 224902 304993 609986 1461863 2923726 3261079 6522158 42394027 84788054