Base | Representation |
---|---|
bin | 1000010100000100… |
… | …1110100101011001 |
3 | 12202112022200100210 |
4 | 2011001032211121 |
5 | 14032303112414 |
6 | 1005240521333 |
7 | 106206031350 |
oct | 20501164531 |
9 | 5675280323 |
10 | 2231691609 |
11 | a45805a34 |
12 | 523480249 |
13 | 2974795a4 |
14 | 17256a997 |
15 | d0dcbe59 |
hex | 8504e959 |
2231691609 has 16 divisors (see below), whose sum is σ = 3600713088. Its totient is φ = 1200237312.
The previous prime is 2231691589. The next prime is 2231691611. The reversal of 2231691609 is 9061961322.
It is not a de Polignac number, because 2231691609 - 27 = 2231691481 is a prime.
It is a super-3 number, since 3×22316916093 (a number of 29 digits) contains 333 as substring.
It is not an unprimeable number, because it can be changed into a prime (2231691659) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3125262 + ... + 3125975.
It is an arithmetic number, because the mean of its divisors is an integer number (225044568).
Almost surely, 22231691609 is an apocalyptic number.
It is an amenable number.
2231691609 is a deficient number, since it is larger than the sum of its proper divisors (1369021479).
2231691609 is a wasteful number, since it uses less digits than its factorization.
2231691609 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6251264.
The product of its (nonzero) digits is 34992, while the sum is 39.
The square root of 2231691609 is about 47240.7833233108. The cubic root of 2231691609 is about 1306.8068235733.
The spelling of 2231691609 in words is "two billion, two hundred thirty-one million, six hundred ninety-one thousand, six hundred nine".
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