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82540227 = 3711794523
BaseRepresentation
bin1001110101101…
…11011011000011
312202022110220110
410322313123003
5132112241402
612105042403
72021403030
oct472673303
9182273813
1082540227
1142656770
1223786403
131413c693
14ad68387
1573a656c
hex4eb76c3

82540227 has 32 divisors (see below), whose sum is σ = 138977280. Its totient is φ = 42325920.

The previous prime is 82540223. The next prime is 82540243. The reversal of 82540227 is 72204528.

It is not a de Polignac number, because 82540227 - 22 = 82540223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 82540194 and 82540203.

It is not an unprimeable number, because it can be changed into a prime (82540223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15988 + ... + 20510.

It is an arithmetic number, because the mean of its divisors is an integer number (4343040).

Almost surely, 282540227 is an apocalyptic number.

82540227 is a deficient number, since it is larger than the sum of its proper divisors (56437053).

82540227 is a wasteful number, since it uses less digits than its factorization.

82540227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4623.

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 82540227 is about 9085.1652158890. The cubic root of 82540227 is about 435.4001285976.

The spelling of 82540227 in words is "eighty-two million, five hundred forty thousand, two hundred twenty-seven".

Divisors: 1 3 7 11 21 33 77 79 231 237 553 869 1659 2607 4523 6083 13569 18249 31661 49753 94983 149259 348271 357317 1044813 1071951 2501219 3930487 7503657 11791461 27513409 82540227