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2230805009 = 10920466101
BaseRepresentation
bin1000010011110111…
…0110001000010001
312202110122122011202
42010331312020101
514032041230014
61005205520545
7106165346456
oct20475661021
95673578152
102230805009
11a4525a904
12523113155
13297228b84
141723b982d
15d0ca43de
hex84f76211

2230805009 has 4 divisors (see below), whose sum is σ = 2251271220. Its totient is φ = 2210338800.

The previous prime is 2230804997. The next prime is 2230805021. The reversal of 2230805009 is 9005080322.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2230804997) and next prime (2230805021).

It can be written as a sum of positive squares in 2 ways, for example, as 1302993409 + 927811600 = 36097^2 + 30460^2 .

It is a cyclic number.

It is not a de Polignac number, because 2230805009 - 228 = 1962369553 is a prime.

It is a super-3 number, since 3×22308050093 (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2230801009) 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, 10232942 + ... + 10233159.

It is an arithmetic number, because the mean of its divisors is an integer number (562817805).

Almost surely, 22230805009 is an apocalyptic number.

It is an amenable number.

2230805009 is a deficient number, since it is larger than the sum of its proper divisors (20466211).

2230805009 is a wasteful number, since it uses less digits than its factorization.

2230805009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20466210.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 2230805009 is about 47231.3985501171. The cubic root of 2230805009 is about 1306.6337458372.

The spelling of 2230805009 in words is "two billion, two hundred thirty million, eight hundred five thousand, nine".

Divisors: 1 109 20466101 2230805009