Base | Representation |
---|---|
bin | 10010101110000111… |
… | …010110001100101001 |
3 | 1220212212122011022102 |
4 | 102232013112030221 |
5 | 312131330440242 |
6 | 13122334503145 |
7 | 1311056641016 |
oct | 225607261451 |
9 | 56785564272 |
10 | 20101030697 |
11 | 8585564970 |
12 | 3a8b964ab5 |
13 | 1b845bc607 |
14 | d898a470d |
15 | 7c9a75e32 |
hex | 4ae1d6329 |
20101030697 has 8 divisors (see below), whose sum is σ = 21929897280. Its totient is φ = 18272414160.
The previous prime is 20101030693. The next prime is 20101030723. The reversal of 20101030697 is 79603010102.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 20101030697 - 22 = 20101030693 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (20101030693) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131879 + ... + 239987.
It is an arithmetic number, because the mean of its divisors is an integer number (2741237160).
Almost surely, 220101030697 is an apocalyptic number.
It is an amenable number.
20101030697 is a deficient number, since it is larger than the sum of its proper divisors (1828866583).
20101030697 is a wasteful number, since it uses less digits than its factorization.
20101030697 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 125023.
The product of its (nonzero) digits is 2268, while the sum is 29.
Adding to 20101030697 its reverse (79603010102), we get a palindrome (99704040799).
The spelling of 20101030697 in words is "twenty billion, one hundred one million, thirty thousand, six hundred ninety-seven".
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