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82182011 = 192227651
BaseRepresentation
bin1001110010111…
…11111101111011
312201122021112012
410321133331323
5132014311021
612053240135
72015351462
oct471377573
9181567465
1082182011
114243161a
122363304b
1314045612
14acb39d9
15733535b
hex4e5ff7b

82182011 has 6 divisors (see below), whose sum is σ = 86735412. Its totient is φ = 77856300.

The previous prime is 82182007. The next prime is 82182017. The reversal of 82182011 is 11028128.

It is a happy number.

It is not a de Polignac number, because 82182011 - 22 = 82182007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82182017) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 113465 + ... + 114186.

It is an arithmetic number, because the mean of its divisors is an integer number (14455902).

Almost surely, 282182011 is an apocalyptic number.

82182011 is a deficient number, since it is larger than the sum of its proper divisors (4553401).

82182011 is a wasteful number, since it uses less digits than its factorization.

82182011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227689 (or 227670 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 23.

The square root of 82182011 is about 9065.4294437715. The cubic root of 82182011 is about 434.7693514562.

The spelling of 82182011 in words is "eighty-two million, one hundred eighty-two thousand, eleven".

Divisors: 1 19 361 227651 4325369 82182011