Base | Representation |
---|---|
bin | 1101001110100001… |
… | …00101011011101001 |
3 | 200022212222202121211 |
4 | 12213100211123221 |
5 | 104020341004433 |
6 | 3132345233121 |
7 | 340654303405 |
oct | 64720453351 |
9 | 20285882554 |
10 | 7101109993 |
11 | 301443404a |
12 | 14621927a1 |
13 | 892247a43 |
14 | 4b515a105 |
15 | 2b863c8cd |
hex | 1a74256e9 |
7101109993 has 4 divisors (see below), whose sum is σ = 7101279108. Its totient is φ = 7100940880.
The previous prime is 7101109973. The next prime is 7101109997. The reversal of 7101109993 is 3999011017.
It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.
It can be written as a sum of positive squares in 2 ways, for example, as 5067731344 + 2033378649 = 71188^2 + 45093^2 .
It is a cyclic number.
It is not a de Polignac number, because 7101109993 - 29 = 7101109481 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (7101109997) 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 3 ways as a sum of consecutive naturals, for example, 31803 + ... + 123343.
It is an arithmetic number, because the mean of its divisors is an integer number (1775319777).
Almost surely, 27101109993 is an apocalyptic number.
It is an amenable number.
7101109993 is a deficient number, since it is larger than the sum of its proper divisors (169115).
7101109993 is an equidigital number, since it uses as much as digits as its factorization.
7101109993 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 169114.
The product of its (nonzero) digits is 15309, while the sum is 40.
The square root of 7101109993 is about 84268.0840710171. The cubic root of 7101109993 is about 1922.0974973488.
The spelling of 7101109993 in words is "seven billion, one hundred one million, one hundred nine thousand, nine hundred ninety-three".
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