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2185089 = 33492087
BaseRepresentation
bin1000010101011110000001
311010000101020
420111132001
51024410324
6114500053
724400344
oct10253601
94100336
102185089
111262765
12894629
135b676a
1440c45b
152d2679
hex215781

2185089 has 8 divisors (see below), whose sum is σ = 2923200. Its totient is φ = 1451856.

The previous prime is 2185037. The next prime is 2185091. The reversal of 2185089 is 9805812.

It is a happy number.

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

It is not a de Polignac number, because 2185089 - 212 = 2180993 is a prime.

It is a super-2 number, since 2×21850892 = 9549227875842, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2185009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4 + ... + 2090.

It is an arithmetic number, because the mean of its divisors is an integer number (365400).

22185089 is an apocalyptic number.

It is an amenable number.

2185089 is a deficient number, since it is larger than the sum of its proper divisors (738111).

2185089 is a wasteful number, since it uses less digits than its factorization.

2185089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2439.

The product of its (nonzero) digits is 5760, while the sum is 33.

The square root of 2185089 is about 1478.2046543020. The cubic root of 2185089 is about 129.7646431920.

The spelling of 2185089 in words is "two million, one hundred eighty-five thousand, eighty-nine".

Divisors: 1 3 349 1047 2087 6261 728363 2185089