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83047030 = 2511754973
BaseRepresentation
bin1001111001100…
…11001001110110
312210021020002221
410330303021312
5132230001110
612123552554
72025613423
oct474631166
9183236087
1083047030
1142972510
122398b75a
1314289271
14b05ad4a
1574567da
hex4f33276

83047030 has 16 divisors (see below), whose sum is σ = 163074384. Its totient is φ = 30198880.

The previous prime is 83047009. The next prime is 83047031. The reversal of 83047030 is 3074038.

It is a junction number, because it is equal to n+sod(n) for n = 83046986 and 83047004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83047031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 377377 + ... + 377596.

It is an arithmetic number, because the mean of its divisors is an integer number (10192149).

Almost surely, 283047030 is an apocalyptic number.

83047030 is a deficient number, since it is larger than the sum of its proper divisors (80027354).

83047030 is a wasteful number, since it uses less digits than its factorization.

83047030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754991.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 83047030 is about 9113.0143201907. The cubic root of 83047030 is about 436.2894404179.

The spelling of 83047030 in words is "eighty-three million, forty-seven thousand, thirty".

Divisors: 1 2 5 10 11 22 55 110 754973 1509946 3774865 7549730 8304703 16609406 41523515 83047030