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84785141 = 731511637
BaseRepresentation
bin1010000110110…
…11011111110101
312220112112100102
411003123133311
5133201111031
612225123445
72046443000
oct503333765
9186475312
1084785141
114394a371
1224489585
131474742c
14b390537
15769b7cb
hex50db7f5

84785141 has 16 divisors (see below), whose sum is σ = 99590400. Its totient is φ = 72147600.

The previous prime is 84785123. The next prime is 84785159. The reversal of 84785141 is 14158748.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (84785123) and next prime (84785159).

It is a de Polignac number, because none of the positive numbers 2k-84785141 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 84785095 and 84785104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84785101) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 50975 + ... + 52611.

It is an arithmetic number, because the mean of its divisors is an integer number (6224400).

Almost surely, 284785141 is an apocalyptic number.

It is an amenable number.

84785141 is a deficient number, since it is larger than the sum of its proper divisors (14805259).

84785141 is a wasteful number, since it uses less digits than its factorization.

84785141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1809 (or 1795 counting only the distinct ones).

The product of its digits is 35840, while the sum is 38.

The square root of 84785141 is about 9207.8847190872. The cubic root of 84785141 is about 439.3121846533.

The spelling of 84785141 in words is "eighty-four million, seven hundred eighty-five thousand, one hundred forty-one".

Divisors: 1 7 49 151 343 1057 1637 7399 11459 51793 80213 247187 561491 1730309 12112163 84785141