Base | Representation |
---|---|
bin | 100000011100010010… |
… | …0000001100011011011 |
3 | 20122211022110200001210 |
4 | 1000320210001203123 |
5 | 2120140110210004 |
6 | 52001044314203 |
7 | 5014310002122 |
oct | 1007044014333 |
9 | 218738420053 |
10 | 69668444379 |
11 | 27601025466 |
12 | 116039a2963 |
13 | 675384b7b1 |
14 | 352c98aab9 |
15 | 1c2b46c089 |
hex | 10389018db |
69668444379 has 32 divisors (see below), whose sum is σ = 101952000000. Its totient is φ = 42121142784.
The previous prime is 69668444357. The next prime is 69668444381. The reversal of 69668444379 is 97344486696.
It is a happy number.
It is not a de Polignac number, because 69668444379 - 211 = 69668442331 is a prime.
It is not an unprimeable number, because it can be changed into a prime (69668444179) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 690822 + ... + 785220.
It is an arithmetic number, because the mean of its divisors is an integer number (3186000000).
Almost surely, 269668444379 is an apocalyptic number.
69668444379 is a deficient number, since it is larger than the sum of its proper divisors (32283555621).
69668444379 is a wasteful number, since it uses less digits than its factorization.
69668444379 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 94947.
The product of its digits is 188116992, while the sum is 66.
The spelling of 69668444379 in words is "sixty-nine billion, six hundred sixty-eight million, four hundred forty-four thousand, three hundred seventy-nine".
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