Base | Representation |
---|---|
bin | 100100110110101011… |
… | …0111100110000011101 |
3 | 21120021200200002010221 |
4 | 1021231112330300131 |
5 | 2244041400101101 |
6 | 100205221401341 |
7 | 5501160060214 |
oct | 1115526746035 |
9 | 246250602127 |
10 | 79144143901 |
11 | 30623895799 |
12 | 13409269251 |
13 | 7603a261a4 |
14 | 3b8b23007b |
15 | 20d32b1aa1 |
hex | 126d5bcc1d |
79144143901 has 2 divisors, whose sum is σ = 79144143902. Its totient is φ = 79144143900.
The previous prime is 79144143877. The next prime is 79144143907. The reversal of 79144143901 is 10934144197.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 68919900676 + 10224243225 = 262526^2 + 101115^2 .
It is a cyclic number.
It is not a de Polignac number, because 79144143901 - 213 = 79144135709 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (79144143907) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39572071950 + 39572071951.
It is an arithmetic number, because the mean of its divisors is an integer number (39572071951).
Almost surely, 279144143901 is an apocalyptic number.
It is an amenable number.
79144143901 is a deficient number, since it is larger than the sum of its proper divisors (1).
79144143901 is an equidigital number, since it uses as much as digits as its factorization.
79144143901 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 108864, while the sum is 43.
The spelling of 79144143901 in words is "seventy-nine billion, one hundred forty-four million, one hundred forty-three thousand, nine hundred one".
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