Base | Representation |
---|---|
bin | 11110011110110001101011 |
3 | 120000221201222 |
4 | 132132301223 |
5 | 4021143004 |
6 | 443132255 |
7 | 124626365 |
oct | 36366153 |
9 | 16027658 |
10 | 7990379 |
11 | 4568321 |
12 | 281408b |
13 | 1869c47 |
14 | 10bdd35 |
15 | a7c7be |
hex | 79ec6b |
7990379 has 2 divisors, whose sum is σ = 7990380. Its totient is φ = 7990378.
The previous prime is 7990373. The next prime is 7990427. The reversal of 7990379 is 9730997.
It is a weak prime.
It is an emirp because it is prime and its reverse (9730997) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 7990379 - 24 = 7990363 is a prime.
It is not a weakly prime, because it can be changed into another prime (7990373) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3995189 + 3995190.
It is an arithmetic number, because the mean of its divisors is an integer number (3995190).
Almost surely, 27990379 is an apocalyptic number.
7990379 is a deficient number, since it is larger than the sum of its proper divisors (1).
7990379 is an equidigital number, since it uses as much as digits as its factorization.
7990379 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 107163, while the sum is 44.
The square root of 7990379 is about 2826.7258445063. The cubic root of 7990379 is about 199.9197928384.
The spelling of 7990379 in words is "seven million, nine hundred ninety thousand, three hundred seventy-nine".
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