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83550055 = 526962119
BaseRepresentation
bin1001111101011…
…01111101100111
312211012210010111
410332231331213
5132342100210
612142433451
72033110111
oct476557547
9184183114
1083550055
1143186436
1223b92887
1314404204
14b14c3b1
15750588a
hex4fadf67

83550055 has 8 divisors (see below), whose sum is σ = 100634400. Its totient is φ = 66590496.

The previous prime is 83550037. The next prime is 83550083. The reversal of 83550055 is 55005538.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-83550055 is a prime.

It is a super-2 number, since 2×835500552 = 13961223381006050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 83549999 and 83550026.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29715 + ... + 32404.

It is an arithmetic number, because the mean of its divisors is an integer number (12579300).

Almost surely, 283550055 is an apocalyptic number.

83550055 is a deficient number, since it is larger than the sum of its proper divisors (17084345).

83550055 is a wasteful number, since it uses less digits than its factorization.

83550055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62393.

The product of its (nonzero) digits is 15000, while the sum is 31.

The square root of 83550055 is about 9140.5719186493. The cubic root of 83550055 is about 437.1685522256.

The spelling of 83550055 in words is "eighty-three million, five hundred fifty thousand, fifty-five".

Divisors: 1 5 269 1345 62119 310595 16710011 83550055