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8166530 = 25816653
BaseRepresentation
bin11111001001110010000010
3120100220101002
4133021302002
54042312110
6451012002
7126262061
oct37116202
916326332
108166530
1146786a9
12289a002
1318cc188
1411281d8
15ab4aa5
hex7c9c82

8166530 has 8 divisors (see below), whose sum is σ = 14699772. Its totient is φ = 3266608.

The previous prime is 8166469. The next prime is 8166553. The reversal of 8166530 is 356618.

It can be written as a sum of positive squares in 2 ways, for example, as 8116801 + 49729 = 2849^2 + 223^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 8166493 and 8166502.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 408317 + ... + 408336.

Almost surely, 28166530 is an apocalyptic number.

8166530 is a deficient number, since it is larger than the sum of its proper divisors (6533242).

8166530 is a wasteful number, since it uses less digits than its factorization.

8166530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816660.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 8166530 is about 2857.7141214614. The cubic root of 8166530 is about 201.3782305858.

It can be divided in two parts, 816 and 6530, that multiplied together give a triangular number (5328480 = T3264).

The spelling of 8166530 in words is "eight million, one hundred sixty-six thousand, five hundred thirty".

Divisors: 1 2 5 10 816653 1633306 4083265 8166530