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2133085 = 51812357
BaseRepresentation
bin1000001000110001011101
311000101001011
420020301131
51021224320
6113415221
724062623
oct10106135
94011034
102133085
111227689
1286a511
13598ba6
143d7513
152c205a
hex208c5d

2133085 has 8 divisors (see below), whose sum is σ = 2574936. Its totient is φ = 1696320.

The previous prime is 2133059. The next prime is 2133097. The reversal of 2133085 is 5803312.

2133085 = T1191 + T1192 + T1193.

It can be written as a sum of positive squares in 4 ways, for example, as 76729 + 2056356 = 277^2 + 1434^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2133085 - 27 = 2132957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274 + ... + 2083.

It is an arithmetic number, because the mean of its divisors is an integer number (321867).

22133085 is an apocalyptic number.

2133085 is the 1193-rd centered triangular number.

It is an amenable number.

2133085 is a deficient number, since it is larger than the sum of its proper divisors (441851).

2133085 is a wasteful number, since it uses less digits than its factorization.

2133085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2543.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 2133085 is about 1460.5084731011. The cubic root of 2133085 is about 128.7269226870.

Adding to 2133085 its reverse (5803312), we get a palindrome (7936397).

The spelling of 2133085 in words is "two million, one hundred thirty-three thousand, eighty-five".

Divisors: 1 5 181 905 2357 11785 426617 2133085