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82786033 = 117526003
BaseRepresentation
bin1001110111100…
…11011011110001
312202202222002101
410323303123301
5132143123113
612114220401
72023445461
oct473633361
9182688071
1082786033
1142804410
1223884701
13141c7525
14adcdba1
1574042dd
hex4ef36f1

82786033 has 4 divisors (see below), whose sum is σ = 90312048. Its totient is φ = 75260020.

The previous prime is 82786003. The next prime is 82786087. The reversal of 82786033 is 33068728.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 82786033 - 25 = 82786001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82785983 and 82786001.

It is not an unprimeable number, because it can be changed into a prime (82786003) 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 3 ways as a sum of consecutive naturals, for example, 3762991 + ... + 3763012.

It is an arithmetic number, because the mean of its divisors is an integer number (22578012).

Almost surely, 282786033 is an apocalyptic number.

It is an amenable number.

82786033 is a deficient number, since it is larger than the sum of its proper divisors (7526015).

82786033 is a wasteful number, since it uses less digits than its factorization.

82786033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7526014.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 82786033 is about 9098.6830365718. The cubic root of 82786033 is about 435.8319095755.

The spelling of 82786033 in words is "eighty-two million, seven hundred eighty-six thousand, thirty-three".

Divisors: 1 11 7526003 82786033