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82037227 = 257319211
BaseRepresentation
bin1001110001111…
…00100111101011
312201100220220211
410320330213223
5132000142402
612050201551
72014206406
oct470744753
9181326824
1082037227
1142342868
12235832b7
1313cc474c
14ac76d3d
1573074d7
hex4e3c9eb

82037227 has 4 divisors (see below), whose sum is σ = 82356696. Its totient is φ = 81717760.

The previous prime is 82037213. The next prime is 82037237. The reversal of 82037227 is 72273028.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-82037227 is a prime.

It is a super-2 number, since 2×820372272 = 13460213227699058, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82037237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159349 + ... + 159862.

It is an arithmetic number, because the mean of its divisors is an integer number (20589174).

Almost surely, 282037227 is an apocalyptic number.

82037227 is a deficient number, since it is larger than the sum of its proper divisors (319469).

82037227 is a wasteful number, since it uses less digits than its factorization.

82037227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319468.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 82037227 is about 9057.4404221060. The cubic root of 82037227 is about 434.5138833507.

The spelling of 82037227 in words is "eighty-two million, thirty-seven thousand, two hundred twenty-seven".

Divisors: 1 257 319211 82037227