Base | Representation |
---|---|
bin | 1000010011111001… |
… | …1110111001001011 |
3 | 12202110222010012211 |
4 | 2010332132321023 |
5 | 14032112100404 |
6 | 1005213245551 |
7 | 106166643325 |
oct | 20476367113 |
9 | 5673863184 |
10 | 2230971979 |
11 | a453642a5 |
12 | 5231938b7 |
13 | 297286b82 |
14 | 172420615 |
15 | d0cd8b04 |
hex | 84f9ee4b |
2230971979 has 4 divisors (see below), whose sum is σ = 2247256584. Its totient is φ = 2214687376.
The previous prime is 2230971961. The next prime is 2230972031. The reversal of 2230971979 is 9791790322.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 2230971979 - 27 = 2230971851 is a prime.
It is a super-3 number, since 3×22309719793 (a number of 29 digits) contains 333 as substring.
It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (2230971679) 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, 8142097 + ... + 8142370.
It is an arithmetic number, because the mean of its divisors is an integer number (561814146).
Almost surely, 22230971979 is an apocalyptic number.
2230971979 is a deficient number, since it is larger than the sum of its proper divisors (16284605).
2230971979 is a wasteful number, since it uses less digits than its factorization.
2230971979 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 16284604.
The product of its (nonzero) digits is 428652, while the sum is 49.
The square root of 2230971979 is about 47233.1660912118. The cubic root of 2230971979 is about 1306.6663444123. Note that the first 3 decimals are identical.
The spelling of 2230971979 in words is "two billion, two hundred thirty million, nine hundred seventy-one thousand, nine hundred seventy-nine".
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