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82911033 = 343173229
BaseRepresentation
bin1001111000100…
…01111100111001
312210000022120000
410330101330321
5132211123113
612121023213
72024506062
oct474217471
9183008500
1082911033
114288a317
1223924b09
131423c3aa
14b023569
15742b373
hex4f11f39

82911033 has 20 divisors (see below), whose sum is σ = 124283940. Its totient is φ = 55082592.

The previous prime is 82911007. The next prime is 82911047. The reversal of 82911033 is 33011928.

It can be written as a sum of positive squares in 2 ways, for example, as 13155129 + 69755904 = 3627^2 + 8352^2 .

It is not a de Polignac number, because 82911033 - 29 = 82910521 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 82910988 and 82911006.

It is not an unprimeable number, because it can be changed into a prime (82911233) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 24063 + ... + 27291.

It is an arithmetic number, because the mean of its divisors is an integer number (6214197).

Almost surely, 282911033 is an apocalyptic number.

It is an amenable number.

82911033 is a deficient number, since it is larger than the sum of its proper divisors (41372907).

82911033 is a wasteful number, since it uses less digits than its factorization.

82911033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3558 (or 3549 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 82911033 is about 9105.5495715525. The cubic root of 82911033 is about 436.0511558667.

The spelling of 82911033 in words is "eighty-two million, nine hundred eleven thousand, thirty-three".

Divisors: 1 3 9 27 81 317 951 2853 3229 8559 9687 25677 29061 87183 261549 1023593 3070779 9212337 27637011 82911033