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2230817 = 2698293
BaseRepresentation
bin1000100000101000100001
311012100002212
420200220201
51032341232
6115451505
724650561
oct10405041
94170085
102230817
111294056
128b6b95
13601514
14420da1
152e0eb2
hex220a21

2230817 has 4 divisors (see below), whose sum is σ = 2239380. Its totient is φ = 2222256.

The previous prime is 2230801. The next prime is 2230819. The reversal of 2230817 is 7180322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7180322 = 23590161.

It can be written as a sum of positive squares in 2 ways, for example, as 295936 + 1934881 = 544^2 + 1391^2 .

It is a cyclic number.

It is not a de Polignac number, because 2230817 - 24 = 2230801 is a prime.

It is a super-3 number, since 3×22308173 = 33305280131840245539, which contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2230792 and 2230801.

It is not an unprimeable number, because it can be changed into a prime (2230819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3878 + ... + 4415.

It is an arithmetic number, because the mean of its divisors is an integer number (559845).

22230817 is an apocalyptic number.

It is an amenable number.

2230817 is a deficient number, since it is larger than the sum of its proper divisors (8563).

2230817 is an equidigital number, since it uses as much as digits as its factorization.

2230817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8562.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 2230817 is about 1493.5919790893. The cubic root of 2230817 is about 130.6636086968.

The spelling of 2230817 in words is "two million, two hundred thirty thousand, eight hundred seventeen".

Divisors: 1 269 8293 2230817