Base | Representation |
---|---|
bin | 1101001011110111… |
… | …11011111101000001 |
3 | 200021100020101200021 |
4 | 12211323323331001 |
5 | 103444200420001 |
6 | 3130233453441 |
7 | 340264553506 |
oct | 64573737501 |
9 | 20240211607 |
10 | 7078920001 |
11 | 300295840a |
12 | 1456871281 |
13 | 88a77887a |
14 | 4b22214ad |
15 | 2b6707ba1 |
hex | 1a5efbf41 |
7078920001 has 2 divisors, whose sum is σ = 7078920002. Its totient is φ = 7078920000.
The previous prime is 7078919999. The next prime is 7078920047. The reversal of 7078920001 is 1000298707.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 5706291600 + 1372628401 = 75540^2 + 37049^2 .
It is an emirp because it is prime and its reverse (1000298707) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 7078920001 - 21 = 7078919999 is a prime.
It is a super-2 number, since 2×70789200012 (a number of 21 digits) contains 22 as substring.
Together with 7078919999, it forms a pair of twin primes.
It is not a weakly prime, because it can be changed into another prime (7078920301) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3539460000 + 3539460001.
It is an arithmetic number, because the mean of its divisors is an integer number (3539460001).
Almost surely, 27078920001 is an apocalyptic number.
It is an amenable number.
7078920001 is a deficient number, since it is larger than the sum of its proper divisors (1).
7078920001 is an equidigital number, since it uses as much as digits as its factorization.
7078920001 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 7056, while the sum is 34.
The square root of 7078920001 is about 84136.3179667378. The cubic root of 7078920001 is about 1920.0933115277.
The spelling of 7078920001 in words is "seven billion, seventy-eight million, nine hundred twenty thousand, one".
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